Angle-adjustable square steel cutting machine with limiting device

The utility model discloses an angle-adjustable square steel cutting machine with a limiting device. The angle-adjustable square steel cutting machine comprises a workbench, and a sliding groove is formed in the surface of the workbench; the sliding base used for conveying square steel is arranged in the sliding groove in a sliding mode, and an electric push rod used for driving the sliding base to move is movably installed in the sliding groove; the limiting mechanism capable of fixing the square steel and adjusting the oblique angle of the square steel is rotationally arranged at the upper end of the sliding seat, and the lower end of the limiting mechanism is fixedly connected with a rotating rod used for rotating on the sliding seat. A worker firstly pulls a finger block through a through hole, the finger block pulls a limiting block through a connecting rod and a movable plate to be stored in a sliding block, at the moment, the limiting block moves out of a limiting groove, a limiting mechanism can rotat