The dust removal mechanism of cyclone dust collector is to make the dusty air flow rotate, with the help of centrifugal force to separate the dust particles from the air flow and collect them in the wall, and then make the dust particles fall into the ash bucket with the help of gravity. Each component of the cyclone has a certain size proportion, and the change of each proportion relationship can affect the efficiency and pressure loss of the cyclone, among which the diameter of the cyclone, the size of the air inlet and the diameter of the exhaust pipe are the main influencing factors.