Sewage intercepting net of underground drainage pipe network

The utility model discloses a sewage intercepting net of an underground drainage pipe network, and relates to the technical field of pipeline treatment. The detachable sewage intercepting net comprises a sewage intercepting net body pipe, a sliding groove installation groove is formed in the inner surface wall of the sewage intercepting net body pipe, a detachable sewage intercepting net body is arranged on the inner surface wall of the sewage intercepting net body pipe and connected with the sewage intercepting net body pipe in a sliding mode, and a small hole antifouling net is arranged on one side of the detachable sewage intercepting net body. And the small-hole antifouling net is fixedly connected with the detachable sewage intercepting net main body. According to the sewage intercepting net, the detachable sewage intercepting net body is arranged in the sewage intercepting net body pipe, the detachable sewage intercepting net body is prevented from moving freely through magnetic attraction between the i