Through-wall connecting pipe structure for water supply and drainage

The utility model discloses a through-wall connecting pipe structure for water supply and drainage, which relates to the technical field of through-wall connecting pipes and comprises a wall body and a sleeve, connecting components are mounted at two ends of the sleeve, a through-wall pipe is arranged in the sleeve, flange plates are mounted at two ends of the through-wall pipe, and a group of buffer positioning components are mounted between the sleeve and the through-wall pipe. The buffer positioning assembly comprises a supporting plate fixedly connected to the outer surface of the sleeve, and a cylinder is fixedly embedded in the outer surface of the supporting plate. Through cooperative arrangement of the wall body, the sleeve, the connecting assembly, the through-wall pipe, the flange plate and the buffering and positioning assembly, the sleeve can be installed in the wall body through the connecting assembly, the through-wall pipe can be conveniently clamped and positioned through the buffering and pos