Hamilton was on an out lap when Sirotkin flew past on the inside, just as the Brit was also moving in.
The pair came within inches of colliding until they both swayed away from each other, forcing the Williams onto the grass.
Sirotkin ended up finishing 15th in Q2 meaning he was knocked out of the season session, while Hamilton went on to secure pole.
But the five-time world champion was furious with Sirotkin after Q3.
“Everyone was on an out lap, me, Sergey and the one in front of me,” Hamilton explained.
“When you’re on an out lap, towards the end of the lap, you try to back off and get a gap
“As far as I knew no one behind was on a lap so I was making sure i had a gap, then all of a sudden out of turn 11 I saw a car coming.
“I thought someone might have been on a lap, so I went to the left and that’s where he decided to go.
“But he wasn’t on a lap so I don’t really know what his thinking was.
“Between all the drivers, we all know to keep our space by that point so it was generally quite a disrespectful move.
“I was trying to get out of his way and then he got to the corner and slowed up.
“It was kind of strange, it was completely unnecessary because he had a space behind. Ultimately his lap and my lap weren’t great.
“Hopefully he can learn from it.”
Meanwhile, Hamilton was delighted with finishing top of the pack, although he claims it was rather unexpected.
“That was a tough qualifying session,” Hamilton said.
“Obviously the weather was going up and down and we didn’t know what to expect.
“Ferrari have been incredibly quick and a lot of work has gone on from my engineers to make sure we have the car in the bets place we could.
“I am pretty happy to be here in Brazil. I have got [Ayrton] Senna’s name on the back of my helmet and I didn’t know if I had pole.
“I had a bit of under steer in a few places but I was so glad when I found out I had pole.”
More to follow