The utility model discloses a steel rolling cutting device with dust removal function, including bottom plate and steel sheet conveyer belt, the equal fixedly connected with support column in both sides at bottom plate top, there is a rolling machine at the back of support column through pivot swing joint, the equal fixedly connected with backup pad in top of two support columns, movable groove has been seted up to the inner chamber of backup pad, the fixed surface of backup pad is connected with first motor. The utility model discloses a cooperation of bottom plate, support column, rolling machine, activity groove, first motor, spiral shell rasp bar, thread block, through -hole, an electric telescopic handle, second motor, cutting knife, suction fan, steel sheet conveyer belt, steel sheet, the 2nd electric telescopic handle, clamp plate and collecting box has been solved steel rolling and when cutting, can't have been collected iron fillings, can only leave that iron fillings are indiscriminate when the cutting operation flies, get into workman's eyes very much easily in, to its problem that leads to the fact the injury.