Self-cleaning anti-blocking municipal drainage device

The invention is suitable for the technical field of municipal drainage, and provides a self-cleaning anti-blocking municipal drainage device which comprises an inspection well arranged under the ground, and a water inlet drainage pipe and a water outlet drainage pipe which are arranged on the two sides of the inspection well; the self-cleaning anti-blocking municipal drainage device further comprises a sludge gathering pit which is arranged at the bottom of the inspection well and arranged in a concave mode, and the sludge gathering pit is arranged in a funnel shape. The separation net is detachably arranged in the inspection well, is used for sealing the inlet of the water outlet tube bank and is arranged by avoiding the mud gathering pit. According to the self-cleaning anti-blocking municipal drainage device, self-cleaning of an inspection well can be achieved, meanwhile, sludge is discharged into the separation well on one side to be separated in use, sewage further flows back, the influence of the sewage