The CLT/A type cyclone dust collector consists of three parts: a cyclone cylinder, an ash collection hopper, and a volute (or air collection cap). According to the number of cylinders, there are five combinations: single cylinder, double cylinder, three cylinder, and six cylinder. Each combination has two types of air outlet: Type I horizontal air outlet and Type II (upper air outlet). For Type I twin tube combination, there are two types of combinations: center inlet and outlet air and side inlet and outlet air. Type I single tube and triple tube only have side outlet air, while four tube and six tube combination only have center inlet and outlet air. For various combinations of Type II, any of the above Type I inlet positions can be used. This dust removal equipment has the characteristics of low resistance, high dust removal efficiency, large air processing volume, stable performance, small footprint, simple structure, practicality and low cost. Suitable for coarse and intermediate dust purification in various mechanical processing, metallurgical building materials, and mining operations.