Lime kiln top desulfurization system

The utility model discloses a desulfurization system at the top of a lime kiln. The device comprises a furnace body and a desulfurization box, the right end of the furnace body is connected with a gasoutlet pipe; the left end of the desulfurization box is connected with a pressurizing box; an air pump is mounted at the bottom end of the interior of the pressurizing box; the top end of the air pump is connected with an air inlet pipe; the top end of the air inlet pipe communicates with the bottom end of a filter pipe, the top end of the filter pipe communicates with the outer wall of an air outlet pipe, a plate groove is formed in the side wall of the filter pipe, a net plate is arranged in the plate groove, an air filter element is installed on the inner wall of the net plate, a handle isfixed to the outer wall of the net plate, and an air conveying pipe is connected to the right end of an air pump. According to the utility model, gas containing sulfide is desulfurized through the desulfurization box, and wat