Drainage device with good drainage effect

The utility model relates to the technical field of drainage engineering, in particular to a drainage device with a good drainage effect, which comprises a drainage pipeline, a sealing plate capable of moving up and down is arranged at the upper end in the drainage pipeline, a fixing pipe is arranged on the bottom wall of the drainage pipeline, and the sealing plate and the fixing pipe are fixed in position through a rotating rod. A blocking plate is arranged in the drainage pipeline, a fastener is arranged on the outer surface of the fixing pipe, and the fastener is located below the blocking plate. Compared with the prior art, the drainage pipeline has the advantages that the sealing plate is arranged in the drainage pipeline, the fence plates are arranged on the periphery of the bottom face of the sealing plate, when the drainage pipeline is used, a user lifts the sealing plate, accumulated water can be drained from the periphery conveniently, the sealing plate can be fixed through the position of the rota