Multistage wet type efficient combined dust remover for smelting furnace

The invention provides a multistage wet type efficient combined dust remover for a smelting furnace and aims to solve the problems that a lot of expenses are required, dust removal does not meet standards and the like in the prior art. The multistage wet type efficient combined dust remover is characterized in that a vertical spraying tower (1), a horizontal stirring pond and a multistage water membrane type dust remover (2) are organically combined to form a whole, waste gas and waste dust discharged from the smelting furnace are sprayed, stirred and subjected to multistage dust removal through a circulating water spraying device, exhausted waste gas meets national standards, besides, pelletized slag is high-quality raw materials for manufacturing light bricks, a dust collection tank contains rich Ca(NO3)2 and CaSO4, a fertilizer source can be used for improving soil, and waste is turned into wealth. The multistage wet type efficient combined dust remover has the advantages of reasonable structure, safety in use, recycling of waste, high efficiency, environment protection and the like and has wide popularization and application value.