Municipal pipeline blowdown device

The utility model relates to the technical field of blowdown devices, in particular to a municipal pipeline blowdown device. In order to solve the problems that sewage generally contains a large amount of impurities, the impurities are accumulated together to easily cause blockage of a subsequent pipeline system and the workload of a subsequent sewage treatment system is increased, the following technical scheme is provided: the sewage treatment device comprises a pipe body and a positioning mechanism fixedly mounted at one end of the pipe body; the load reducing assembly is used for filtering sewage in the pipe body, the load reducing assembly is mounted on a positioning mechanism, and the positioning mechanism is used for fixing the position of the load reducing assembly. According to the utility model, impurities in sewage can be effectively filtered, the pipeline is prevented from being blocked, the burden of a subsequent sewage treatment system is reduced, and the sewage treatment effect and the water pu