Cutting device for steel machining

The utility model discloses a steel processing cut-off device which comprises a bottom box, a transverse plate fixedly connected to the top of the bottom box and a cut-off device fixedly connected to the top of the transverse plate, a front protruding plate is transversely and fixedly connected to the top of the front face of the bottom box, and collecting pumps are fixedly connected to the two sides of the top of the front protruding plate. The output end of the collecting pump communicates with a collecting pipe, the side, away from the collecting pump, of the collecting pipe communicates with a collecting cover, the front face of the collecting cover is fixedly connected with a vertical plate, the bottom of the vertical plate is fixedly connected with the transverse plate, and the input end of the collecting pump communicates with a slag discharging pipe. The cut-off device for steel machining achieves the effect of absorbing dust and scrap iron, and solves the problems that a large amount of dust is gener