Building waterproof structure capable of avoiding water leakage

The utility model relates to the technical field of building waterproofing, in particular to a building waterproof structure capable of avoiding water leakage, which comprises a steel plate, the inner wall of one side of the steel plate is in clearance fit with the upper part of the outer wall of a vertical plate, the bottom of the vertical plate is fixedly connected with the top of a transverse block, and the outer wall of the transverse block is in clearance fit with the inner wall of one side of the top of a wall body. The bottom of the transverse block is fixedly connected with the top of a threaded rod. Through cooperation of a wall body, a waterproof coiled material, a first waterproof glue layer, a second waterproof glue layer, a threaded rod, a transverse block, a steel plate, a vertical plate, foaming foam, a square block and a connecting structure, when the device is used, a round block can be rotated to drive a lead screw to rotate, the lead screw drives an inserting rod to move outwards, the inser