Desulfurization and denitrification cooling device for cement flue gas

The utility model discloses a desulfurization denitration cooling device for cement flue gas, which comprises a cooling tank, a blow-off pipe, a first descaling frame and a second descaling frame, a plurality of gas delivery pipes are arranged on the inner wall of the cooling tank, the blow-off pipe is arranged at the bottom end of the cooling tank, the bottom end of the blow-off pipe is in threaded connection with a sealing cover, and the first descaling frame is connected with the second descaling frame. A plurality of first check blocks and second check blocks are arranged on the first descaling frame at equal intervals, and a plurality of third check blocks and fourth check blocks are arranged on the second descaling frame at equal intervals. The top cover can be detached by rotating the bolt, a descaling agent can be added after the top cover is detached, the first descaling frame is moved up and down, the first check block of the first descaling frame can scrape off part of water scale during movement,