Desulfurization, denitration and dust removal device for blast furnace gas

The utility model relates to the technical field of blast furnace gas desulfurization, denitrification and dust removal, in particular to a blast furnace gas desulfurization, denitrification and dust removal device which comprises a dust removal cavity, a gas inlet formed in the left side of the dust removal cavity, a plurality of sprayers mounted at the top of the dust removal cavity, a water tank mounted at the bottom of the dust removal cavity, and a desulfurization pipe and a denitrification cavity mounted on the right side of the dust removal cavity, a sealing door is hinged to the top of the desulfurization pipe, a stirring shaft is arranged in the denitration cavity, and an air outlet is formed in the right side of the denitration cavity. According to the blast furnace gas desulfurization, denitrification and dust removal device, blast furnace gas is subjected to pre-dust removal through the dust removal cavity, large-particle dust is downwards concentrated in the dust collection barrel under the actio