Multi-order efficient cyclone dust removal device

The invention relates to a multi-order efficient cyclone dust removal device. The device comprises a cyclone cylinder and a deashing device, and is characterized in that the cyclone cylinder comprisesa high-order cyclone cylinder and a low-order cyclone cylinder which are connected with each other, the high-order cyclone cylinder comprises a first straight cylinder and a first cone-shaped cylinder, the low-order cyclone cylinder comprises a second straight cylinder and a second cone-shaped cylinder, an inner diameter of the second straight cylinder is less than that of the first straight cylinder, an anti-rotating dust removal device is arranged in a cylinder body at the junction of the first straight cylinder and the first cone-shaped cylinder, the anti-rotating dust removal device comprises a rotating shaft and a plurality of blades distributed around the shaft, and the side wall of the second straight cylinder is provided with a cyclone accelerating ventilation opening used for increasing the flow rate of