The HMC type pulse jet single machine bag filter is a small bag filter designed by Huakang after digesting and absorbing similar foreign product technologies through improvement and reverse design. This dust collector adopts the technology of high-pressure (0.5-0.7MPa) high flow pulse valve to blow and clean the dust filter bags one by one. Compared with other single machines in China, it has the characteristics of high dust cleaning kinetic energy and high dust cleaning efficiency.