Anti-blocking peripheral for municipal bridge road drainage channel

The utility model provides a municipal bridge road drainage channel anti-blocking peripheral device which comprises a sewer pipe, a cover plate, a net plate, a filtering cover, a collecting cylinder, an inserting rod, a fixing nut, a reducing pipe, a side pipe, a drainage hole, an elastic warning rod structure, a water inflow prevention rotating brush rod structure and a filtering drainage pipe structure. The middle of the lower side of the cover plate is in bolted connection with a net plate, a filter cover is arranged in the middle of the interior of the sewer pipe, a collecting cylinder is arranged in the sewer pipe, a vertical section of the filter cover penetrates through a through hole formed in the middle of a horizontal section of the collecting cylinder, and the horizontal section of the collecting cylinder is arranged on the upper portion of the horizontal section of the filter cover. The arrangement of the extension rod, the warning tube, the connecting column, the spring and the filter screen is b