The utility model discloses a sediment device is arranged to circulating fluidized bed boiler beam type cloth wind, including cloth wind roof beam, air -supply line, bellows, ash bucket, a wind channel, sediment device is arranged to circulating fluidized bed boiler beam type cloth wind lies in the furnace below, cloth wind position of sill in above the sediment device is arranged to circulating fluidized bed boiler beam type cloth wind, continuous through air -supply line and bellows, the bellows below links to each other with a wind channel, and two liang of intermediate spacing spaces in the bellows constitute the slag chute that falls, and are continuous with the ash bucket below the slag chute that falls. This sediment device is arranged to circulating fluidized bed boiler beam type cloth wind can make air distribution plate cloth wind even, and it is smooth and easy to arrange the sediment, the air distribution plate drag -reducing.