Pipeline sewage treatment device for water supply and drainage engineering

The utility model discloses a pipeline sewage treatment device for water supply and drainage engineering, which relates to the technical field of pipeline sewage treatment and comprises a sedimentation tank, a cleaning mechanism is fixedly connected to one side of the top end of the sedimentation tank, a stirring mechanism is arranged at the top end of the sedimentation tank and comprises two support plates, and the two support plates are fixedly connected with the cleaning mechanism. The bottom ends of the two supporting plates are both fixedly connected with the top end of the sedimentation tank, round rods are arranged at the top ends of the two supporting plates in a penetrating mode, four stirring pieces fixedly sleeve the outer surfaces of the two round rods, belt wheels are fixedly connected to the top ends of the two round rods, and the outer surfaces of the two belt wheels are jointly sleeved with a conveying belt. According to the sewage treatment device disclosed by the utility model, the stirring