Anti-blocking device for sewage metering pipeline

The invention discloses a sewage metering pipeline anti-blocking device which comprises a first pipeline and a second pipeline, the first pipeline is connected with the second pipeline, an anti-blocking structure is arranged in the first pipeline and the second pipeline, and the anti-blocking structure comprises an annular baffle, a sealing frame, a filtering part, a fixing part, a partition plate and a flow increasing part. The annular baffle is arranged in the first pipeline, the sealing frame is connected to the bottom face of the annular baffle in a sealed and attached mode, the first pipeline and the second pipeline are each internally provided with a structure capable of preventing blockage, foreign matter in flowing sewage can be collected through the filtering cover, and a fixing structure is arranged at the bottom, so that the structure is simple and convenient to use. The connecting mode is simple and convenient to operate, the device can be easily disassembled without a tool, and the flowing speed