Dry quenching coke powder cooling device

The invention relates to the field of coking and discloses a dry quenching coke powder cooling device. The dry quenching coke powder cooling device comprises a water-cooling sleeve device, wherein the water-cooling sleeve device comprises a cylinder body and a water-cooling sleeve; the water-cooling sleeve sequentially comprises an inner sleeve, a spacer sleeve and an outer sleeve from the inside out; the bottoms of the inner sleeve and the outer sleeve are connected through a semicircular ring pipe to form a closed cavity; a clearance allowing cooling water to circulate is formed between the spacer sleeve and the semicircular ring pipe; a first tube plate, a second tube plate and a third tube plate are sequentially arranged at the inner upper part of the cylinder body from top to bottom; the pipe orifice at the top of the inner sleeve is connected with a first through hole in the first tube plate; the pipe orifice at the top of the spacer sleeve is connected with a second through hole in the second tube plat