To provide a dust collector excellent in suction power and capable of exerting effective dust removal.

The dust collector 1 has a blow means 2 blowing compressed gas to a surface 5 with dust to be removed to which dust 6 adheres, and a suction means 3 sucking the dust 6 having whirled up by blowing the compressed gas. The suction means 3 has a suction flow path 30 opening to the front edge side, on which a tornado fin 31 making a suction gas stream 41 spiral is disposed. The blow means 2 has a plurality of blow nozzles 20 ejecting the compressed gas at the front edge part 10 of the dust collector 1.