Medical building top layer structure

The invention belongs to the technical field of building structures, and particularly discloses a medical building top layer structure which comprises a fence, a building body top plate and a drainage unit, the fence is fixedly connected to the building body top plate, the building body top plate is arranged at the top of a building body, the drainage unit comprises a drainage pipe and a drainage pipe, the drainage pipe is connected to the side wall of the building body, and a water guide groove is formed in the fence. The two ends of the drainage pipe are communicated with the water guide groove and the drainage pipe respectively, a sealing cover is connected to the drainage pipe and fixedly connected with the drainage pipe, a plurality of water inlet holes are formed in the fence, a fan is arranged on the fence, and the fan is higher than the drainage pipe. Rainwater can be drained by forming the water guide groove in the fence, so that the rainwater quickly flows out of the top of the building body, the ra