Automatic cleaning device for camera lens barrel

The invention discloses an automatic cleaning device for a camera lens barrel. The automatic cleaning device comprises a cleaning box, wherein a cleaning cavity with a leftward opening is formed in the cleaning box, an inner groove with a leftward opening is formed in the right wall of the cleaning cavity in a communicating mode, a belt cavity is formed in the cleaning box, a motor is fixedly connected to the right side of the upper wall of the belt cavity, the lower end of the motor is in power connection with a right belt shaft, and a right cavity is formed in the cleaning box. According tothe automatic cleaning device, the lens barrel and the lens surface of a camera can be cleaned, after a camera lens is placed into the cleaning cavity inwards, the lens barrel is brushed through a rotating annular brush, moreover, the annular brush can move left and right so as to fully clean the lens barrel, moreover, the lens surface is brushed through the lens brush in a rotating mode so as tobrush away dust and stains