The invention relates to a flue gas recovery deduster convenient to clean. The flue gas recovery deduster convenient to clean comprises a deduster body, wherein a Venturi tube is arranged in the deduster body, a flow guiding plate is arranged above the Venturi tube, and the flow guiding plate can be detachably connected with the top of the deduster body. Compared with the prior art, the flue gas recovery deduster is provided with a detachable flow guiding plate, when the Venturi tube is required to be cleaned, the detachable flow guiding plate is only required to be dismounted, the Venturi tube can be cleaned conveniently, the labor intensity can be greatly alleviated, the labor time is shortened, the insecurity factor is eliminated, the flue gas recovery deduster can be cleaned easily and comprehensively without dead angles, a flue is kept unblocked, and the combustion working conditions of the deduster and a boiler are stable and the service life of the deduster is prolonged.