Cleaning equipment for inner wall of ventilation pipeline of range hood

The invention discloses cleaning equipment for the inner wall of a ventilation pipeline of a range hood. The cleaning equipment structurally comprises a cylindrical machine body, a cleaning disc mechanism and an oil collecting hole, wherein the bottom end surface of the cylindrical machine body is connected with the cleaning disc mechanism; and the oil collecting hole is formed in the surface of the cleaning disc mechanism and penetrates through the upper and lower end surfaces of the structure. The cleaning equipment has the beneficial effects that the drainage effect on oil dirt is achievedby utilizing the height drop of a guide groove with drop performance and a step plate of the cleaning disc mechanism; the oil dirt can be gathered towards the center position along the guide groove; astacked oil film pushes the structure to change, and downward suction force is produced to suck the oil dirt from a conical groove; and the cleaning equipment can be embedded in the inner wall of theventilation pipeline of th