Sedimentation and filter tank composite sewage treatment device

The utility model relates to the technical field of composite sewage treatment devices, in particular to a sedimentation and filter tank composite sewage treatment device which comprises a sedimentation bin, a filter bin is arranged on one side of the sedimentation bin, a sedimentation inclined plate is arranged in the sedimentation bin, and a middle-layer inclined plate is arranged on the lower side of the sedimentation inclined plate. A hinged frame is arranged between the precipitation inclined plate and the middle-layer inclined plate, a lower-layer inclined plate is arranged on the lower side of the middle-layer inclined plate, a water guide plate is arranged on the inner bottom side of the filter bin, a filter membrane is arranged on the water guide plate, and a water outlet pipe is arranged on the side, away from the precipitation bin, of the filter bin. According to the sewage treatment device, through the arrangement of the precipitation inclined plate, the middle-layer inclined plate and the hinging