Dedusting telescopic barrel

The utility model discloses a dedusting telescopic barrel which comprises a telescopic main body and a telescopic driving mechanism, the telescopic main body comprises a plurality of discharging telescopic chutes which are sequentially and movably arranged from bottom to top, and a telescopic fixing piece is arranged on the discharging telescopic chute located at the bottom. The telescopic connecting piece is connected with the telescopic fixing piece of the discharging telescopic chute and then connected with the telescopic driving mechanism, the telescopic driving mechanism drives the discharging telescopic chute at the bottom to move upwards or downwards, and the discharging telescopic chute located on the lower portion can abut against the discharging telescopic chute located on the upper portion after being shrunk and sequentially drives the discharging telescopic chutes located on the upper portion to be shrunk. According to the utility model, dust splashed when gravels and the like fall from the convey