Water supply and drainage pipeline with inner wall automatic desilting function for domestic wastewater

The invention provides a water supply and drainage pipeline with an inner wall automatic desilting function for domestic wastewater. The water supply and drainage pipeline comprises a first water supply and drainage pipeline body, a second water supply and drainage pipeline body and a connecting pipeline; the end of the first water supply and drainage pipeline body is fixedly connected with a first connection flange, and the end of the second water supply and drainage pipeline body is fixedly connected with a second connection flange, and the two ends of the connecting pipeline are fixedly connected with third connection flanges correspondingly; and the first connection flange and the second connection flange are fixedly connected with the third connection flanges correspondingly, and a turbine impeller is arranged in the connecting pipeline. The water supply and drainage pipeline is mounted conveniently through a bolt assembly; and the wastewater has a certain flow speed, thus the turbine impeller rotates so