Water seepage inspection device for municipal bridge

The utility model discloses a water seepage inspection device for a municipal bridge. The device comprises a coaming and a detection assembly arranged in the coaming, the detection assembly comprises a water tank detachably connected to the top of the coaming, a water outlet is detachably connected to the surface of the water tank, a water pump is detachably connected to one side of the water tank, a through hole is formed in the coaming, and an open groove is formed in the bottom of the coaming. A user injects glue into the through hole formed in the coaming, the glue flows into the bottom of the coaming through the through hole to make contact with the bridge floor, then the glue is guided through the open groove formed in the bottom of the coaming, a circuit facilitating the glue to form a loop in a surrounding mode is formed at the bottom of the coaming, and therefore the bottom of the coaming and the bottom of the bridge are sealed; and after sealing is completed, a water source in the water tank flows i