Urban drainage dredging pipeline

The utility model relates to an urban drainage dredging pipeline which comprises a water inlet pipe, a water outlet pipe communicating with the water inlet pipe and a dredging cavity located between the water inlet pipe and the water outlet pipe. A water outlet connecting pipe used for being communicated with the water outlet pipe is arranged on the other side of the dredging cavity, a filtering frame used for filtering and placing impurities is arranged at the bottom of the dredging cavity, a filtering assembly used for enhancing filtering is clamped and matched to the upper portion of the filtering frame, and a filtering net is arranged on the side, close to the water outlet connecting pipe, of the filtering frame; and a lifting assembly for lifting the filter frame to clean impurities in the filter frame is arranged on the top side in the dredging cavity. The domestic sewage treatment device has the effects of filtering domestic sewage and reducing pipeline blockage caused by impurities in the domestic sew