Wet-type electrical precipitator

The invention discloses a wet-type electrical precipitator which comprises a casing and dust collecting plates, wherein the dust collecting plates are arranged in the casing, the dust collecting plates are parallelly arranged, a plurality of needling lines are arranged between two adjacent dust collecting plates, a process water pipe is arranged above the dust collecting plates, the process water pipe is connected with a main nozzle, the two ends of the process water pipe in the casing are respectively provided with a directed nozzle, and the spraying direction of each directed nozzle faces a surface (opposite to the side wall of the casing) of the dust collecting plate. The wet-type electrical precipitator disclosed by the invention has the advantages that the water for dust removal is sprayed to the surface (close to the side wall of the casing and opposite to the side wall of the casing) of the dust collecting plate, so that a uniform and complete liquid membrane can be formed and covered on the surface, thereby improving the efficiency of removing combined pollutants by using the wet-type electrical precipitator, and therefore the wet-type electrical precipitator has an outstanding combined pollutant control function, and can significantly save the water for dust removal.