Cyclone separator air pollution control systems are normally used for collection of coarse dust particles in a cyclone separator dusty ir is introduced at the top of a cyclone through the inlet pipe located tangentially to the cylindrical portion the gases then move downwards in a whirling motion foring a peripheral vortex and giving rise to centrifugal forces resulting in a throwing of the dust particles towards the walls which then move downwards into the hopper and are finally removed through the draw off pipe