The utility model discloses a synchronous dust absorption edulcoration device of carding machine, including edulcoration case, dust absorption pipe, dust catcher, dust storage tank, gettering ware, the shape of edulcoration case is trapezoidal, the side of edulcoration case is provided with a plurality of air suction openings, the dust absorption pipe is installed in the air suction opening, the intraductal dirt filtrating screen that is provided with of dust absorption, the end -to -end connection of dust absorption pipe has the dust catcher, the dust catcher is located edulcoration case lateral wall, the dust catcher bottom is connected with dust storage tank, the gettering ware sets up the bottom at the edulcoration case, gettering ware below is provided with miscellaneous fine hair accumulator. The utility model discloses can make carding machine muddy some dusts in the fibre short flannel is detached in step to the in -process of detaching the fibre short flannel, for the recycle of fibre short flannel creates the condition, the effectual resource of having practiced thrift, the cost is reduced has improved the productivity effect, can also reduce the potential safety hazard simultaneously, maintains that operational environment is healthy, improves product quality.