Desulfurization and denitrification device for boiler

The utility model provides a boiler desulfurization and denitrification device which comprises a barrel, a first water pipe, a pump body, a second water pipe, sprayers, a baffle plate, a motor, a cooling plate and a scraper plate, the second water pipe is introduced into the barrel, the bottom end of the second water pipe is communicated with a plurality of sprayers, the sprayers are uniformly distributed in the barrel at intervals, and the second water pipe is communicated with the output end of the pump body. The input end of the pump body is communicated with a first water pipe, the first water pipe is communicated with the bottom of an inner cavity of the barrel, the position, close to the bottom end, of one side of the barrel is communicated with an air inlet, baffles which are alternately distributed are fixedly installed on the inner wall of the barrel, the baffles are obliquely and downwards arranged and located below the spray heads, and cooling plates are fixedly installed at the bottom ends of the