Drainage system with sewage intercepting pipe and rainwater treatment facility

The utility model discloses a drainage system with a sewage intercepting pipe and a rainwater treatment facility, which belongs to the technical field of drainage and comprises a dredge well, a first water inlet and a first water outlet pipe are arranged on the dredge well, a dredging device is mounted in the dredge well, and the other end of the first water outlet pipe is connected with a buffer well. The buffer well is connected with a regulation and storage facility through a second water outlet pipe, the regulation and storage facility communicates with a rainwater diversion well through a third water outlet pipe, a sewage diversion well is arranged on one side of the rainwater diversion well and communicates with a treatment facility through a second water inlet pipe, and the treatment facility communicates with a sewage pipe. The output end of the motor drives the gear on one side to rotate, due to the fact that the gears are connected in a meshed mode, the sleeves rotate at the same time, the sliding r