Basement through -wall pipe's waterproof construction

The utility model discloses a basement through -wall pipe's waterproof construction relates to basement waterproofing technical field, including the wall pipe that passes the wall body, the welding has waterproof cannulas on the outer wall of wall pipe in the wall body, waterproof cannulas is in charge of including being a plurality of of step like setting, and is a plurality of be in charge of from the wall body outside highly crescently to the wall body inboard. When groundwater permeated toward the clearance between waterproof cannulas and the wall body, each was in charge of the infiltration of formation recess in order to cut off water between wall pipe and wall body, because each is in charge of step like setting, two water of being in charge of the juncture need be overcome the deadweight and in order to transfer to being in charge of of the basement outside near the inboard department that is in charge of of basement from being close to, through obstruction many times, effectively prevent the infiltra