Overflow type road snow and ice melting device

The utility model discloses an overflow type road snow and ice melting device which comprises a water storage sedimentation tank arranged underground and used for preserving heat and depositing a hot water source; the altitude of the water storage sedimentation tank is greater than that of a road; a filter is arranged on the sidewall of the water storage sedimentation tank and connected with the hot water resource through a water leading pipeline; overflow pipelines are arranged in fences on two sides of the road in the road pass direction; nozzles for spraying water to the surface of the road are uniformly connected onto the overflow pipelines; one ends of the nozzles are connected with the overflow pipelines while the other ends of the nozzles penetrate through the fences; the overflow pipelines are connected with the water storage sedimentation tank via water conveying pipelines; water control valves are arranged on the water conveying pipelines; temperature meters are mounted nearby the water control valv