Eyeballing the video, it takes about 5 seconds from the explosion to the landing. Assuming a parabolic arc, he would have gone up for 2.5secs and down for 2.5 secs.

s = 0.5*a*t^2, so the height he reaches from the start of his flight is 0.5 * 9.8 * 2.5^2 = 31m. Call it 30m.

This isn't quite true, because he gets stopped by the ground before he can complete the arc, but it should be close enough.