Ventilating pipeline of central air conditioner

The utility model relates to a ventilating pipeline for a central air conditioner, comprising an outer pipe and an inner pipe. The wall of the inner pipe is provided with a netted through hole, the outer wall of the inner pipe is in a tenon type insertion and match with the inner wall of the outer pipe, in order to form a concavo-convex clamp structure, and various shapes of the cross sections of the inner pipe can be applied. One end of the inner pipe is sealed, while in use, and the other end is connected with a high pressure water pump. The cleaning water or the disinfecting liquid is pumped into the outer pipe, when the inner part of the outer pipe is needed to be cleaned, or the sterilization is needed to be processed to the inner part of the outer pipe, in order to guarantee the cleaness of the inner part of the ventilating pipeline. The outer pipe and the inner pipe adopt the tenon type match structure; the utility model is much more practical, especially during the prevalence of an infectious disease, with easy installation.