Diversion tunnel plug concrete drainage pipe device

The utility model discloses a diversion tunnel plug concrete drainage pipe device, which comprises a drainage pipe, wherein a check valve and a return pipe which is led out of the plug to the downstream along the drainage pipe in parallel are arranged nearby the water inlet end of the drainage pipe; one end of the return pipe is communicated with the drainage pipe; a gate valve and a slurry inlet pipe are arranged nearby the water outlet end of the drainage pipe; and one end of the slurry inlet pipe is communicated with the drainage pipe. According to the diversion tunnel plug concrete drainage pipe device, the problems that the water seepage cannot be effectively discharged and the backfill quality is low in the concrete construction process can be solved, the water seepage in the plug concrete construction process is effectively discharged, and the device is high in construction quality, simple in structure and practical.