The utility model discloses a dust removal machine aims at providing one kind and washs the better dust removal machine who just promotes the cleaning efficiency of dust effect, and its technical scheme main points are: including frame, fabric guide roll, transmission roller, outlet roller and belt cleaning device, fabric guide roll, transmission roller, outlet roller and belt cleaning device all set up in the frame, and the cloth passes through fabric guide roll, transmission roller, belt cleaning device and outlet roller to be exported in proper order, belt cleaning device includes the air knife, brush roller and fixed roll, the air knife includes first air knife, second air knife and third air knife, the brush roller includes first brush roller, second brush roller and third brush roller, fixed roll and first brush roller, the tangent setting respectively of second brush roller and third brush roller, first air knife sets up with the second air knife relatively, first air knife, the second air knife, first brush roller, second brush roller, third air knife and third brush roller set gradually in the frame according to the transmission direction of cloth, can play the cleaning action and promote the cleaning efficiency the dust.