Drainage structure of underground subway station construction deformation joint

The utility model discloses a drainage structure of an underground subway station construction deformation joint, which comprises a first wall body and a second wall body, a transversely arranged deformation joint is arranged between the first wall body and the second wall body, a drainage ditch is arranged on the upper side of the deformation joint, and the drainage ditch is communicated with the deformation joint. The drainage structure for the construction deformation joint of the underground subway station has the advantages that emergency early warning design is carried out on the drainage ditch in the working process, when a drainage opening of the drainage ditch is accidentally blocked, water in the drainage ditch is not prone to leaking to the surface of a wall body in a short time, workers can easily perceive the situation, and the construction efficiency is improved. Meanwhile, the reinforcing device arranged in the connecting groove can reinforce the drainage ditch, collapse and even breakage of th