Polyethylene pipeline for water supply

The utility model discloses a polyethylene pipeline for water supply, which comprises a polyethylene pipeline, an annular mounting groove is arranged on the polyethylene pipeline, a mounting ring is sleeved on the annular mounting groove, a ball groove is arranged on the annular mounting groove, an annular groove is arranged on the inner wall of the mounting ring, and a ball is mounted between theball groove and the annular groove. According to the polyethylene pipeline for water supply, through cooperation of the ball grooves, the annular grooves and the balls, the mounting ring is limited to only rotate in the annular mounting grooves, and the polyethylene pipeline and the mounting ring are separated through the balls, so that abrasion between the polyethylene pipeline and the mountingring is avoided; the PE inner pipe is subjected to high-temperature protection through the heat insulation layer, meanwhile, the anti-corrosion effect of the polyethylene pipeline can be effectively improved through the anti-c