The invention discloses a cutting machine for processing bamboo wood and capable of cleaning wood dust. The cutting machine comprises a shell, wherein a first motor is fixedly connected with the rearside of an inner wall of the shell; a rotary table is fixedly connected with an output end of the first motor; the front surface of the rotary table is fixedly connected with a connecting column; a sliding plate is arranged on the front surface of the connecting column; an open groove is formed in the surface of the sliding plate; the surface of the connecting column is located in the open groove;the bottom of the sliding plate is in sliding connection with the bottom of an inner wall of the shell. According to the cutting machine disclosed by the invention, the shell, the first motor, the rotary table, the connecting column, the sliding plate, the open groove, a connecting plate, a sleeve, a movable rod, a connecting block, a movable plate, a communication groove, a sliding column, a sliding sleeve, a sliding rod, an air blower, a retractable pipe, a metal pipe, a suction head, air cylinders, a fixed plate, a motor box, a second motor and a cutting blade are arranged, so that the problems of an existing cutting machine that the wood dust cannot be cleaned, and harmful substances and the wood dust fly upward and dangers to human bodies are caused are solved.