The utility model relates to a pearlite recovery dust catcher, belonging to the environmental protection equipment field, and solves the problem of the flue gas pollution which is caused by the prior pearl-using manufacturers. The pearlite recovery dust catcher which is provided by the utility model can recover the granule pearlites in the flue gas and protect environment. The utility model is characterized in that two sides of a main body are provided with an air inlet and an air outlet, a collection box is mounted on the lower end of the main body, a main shaft is arranged in the main body and is connected with a transmission gear which is arranged outside the main body, a hollow cylinder is mounted on the main shaft which is arranged in the main body, and filter screens are provided around the hollow cylinder. The utility model can recover the pearlites which are discharged to the atmosphere along the flue gas when in the production process of pearlites, and enhance economic benefits of producers and reduce losses.