The Clarets came from behind to complete the first league double over their West Yorkshire rivals since the 1926/1927 season.
The victory meant Sean Dyche’s team ended a busy week of games on a high having picked up four points from previous two away matches against Blackburn Rovers and Birmingham City.
Burnley also went ten points clear in second place in the Championship table and extended their two unbeaten league records – to 14 games overall and 22 matches at home.
And Arfield was satisfied with another well-earned win at the weekend.
He said shortly after the game: “I’m absolutely delighted. It just shows you what a valuable point it was on Wednesday night [against Birmingham]. To get four points from two away games and another three today, we’re delighted with that.
“We knew exactly what it was going to be and I’m sure the fans did as well. They [Leeds] came on the back of two bad results and they were going to stand up and be counted, so we knew exactly what we were in for.
“But we didn’t panic, we were in those situations before and we think we can win every game, especially here where the fans are backing us.
“We’re in a great position, but the mentality has never changed. It’s there to win the three points in every game.”
The Scottish midfielder bagged his seventh goal of the season in all competitions midway through the second half against Leeds after his initial short had been blocked.
And while the goalscoring duo of Danny Ings and Sam Vokes have understandably grabbed a lot of the attention during this campaign, Arfield is one of as many as eight different players who were on target for the Clarets in the last six games.
He added: “I didn’t really have time to react [for my goal]. Junior [Stanislas] came on the inside and Ben Mee overlapped and put a cross over. To be fair, I think the first one [strike] was a great clearance and then it just came in and luckily enough, I got a good touch to take it on the half-volley and right into the bottom corner.
“For as good as the two [Ings and Vokes] are and they’ve been phenomenal, I think it’s very valuable and very important for other players to chip in.
“Deano [Dean Marney] has scored three and there are goals from everywhere in the team. There’s nothing better than scoring yourself, though, so I’m absolutely delighted.”
Next up for Burnley is an away trip to relegation-threatened Charlton Athletic on Saturday.
And despite the Londoners’ low league position, the Clarets number 37 expects yet another difficult challenge down at the Valley – one the whole team will be well prepared for.
He insisted: “We’ve always said that every team in this division can put up a fight and we know it is going to be no different between playing the top teams and those down there scrapping for everything.
“We know exactly what we’re going to do and it’s up to us to go there, pass the ball and play and hopefully get another three points.”