Sleeve type through-wall pipe waterproof structure

The utility model provides a casing pipe type through-wall pipe waterproof structure, and belongs to the technical field of building construction. According to the technical scheme, the casing pipe type through-wall pipe waterproof structure is characterized in that the casing pipe type through-wall pipe waterproof structure comprises a casing pipe embedded in a wall body and a water stop ring fixedly arranged on the outer wall of the casing pipe, the through-wall pipe is arranged in the casing pipe in a sleeved mode, and polyurethane sealant is filled between the casing pipe and the through-wall pipe; first waterproof layers made of waterproof coiled materials are arranged on the upstream face of the wall body and the outer wall, extending out of the upstream face, of the through-wall pipe, second waterproof layers made of waterproof coiled materials are arranged on the outer sides of the first waterproof layers, and a plurality of annular hoops are arranged on the second waterproof layers arranged on the th