Lovely and evocative. The exaggeration of the temperature went a bit far (if it’s as hot as the sun, he wouldn’t be walking, just melting into oblivion). Otherwise I think it worked pretty well to get across the feel you were going for.
If you just cut out the second sentence, which is confusing to read, you are left with a descriptive, albeit morose, piece. My eyes are dry, but I feel thirsty after reading this. Desolate, without solace, a madness of heat and torture, yes a very descriptive piece.