Circular knitting machine

The invention provides a circular knitting machine. A yarn transmission unit and a textile machine body are arranged on a rack. Bobbin loaders are arranged on the two sides of the rack, and multiple bobbins are connected to the bobbin loaders. The yarn transmission unit comprises a drive motor, a driving wheel is connected to the drive motor through a driving shaft, and the driving wheel is connected with a yarn feeding unit through two stages of transmission. A dust removal collecting device is arranged between the machine body and the yarn transmission unit, and comprises a dust retaining ring, a scraping strip, a dust suction pipe, a dust suction fan and a dust collecting container. The dust retaining ring is arranged on a tabletop, and multiple dust removal openings are formed in the side wall. The scraping strip is fixed to the side wall of a rotary table. The dust suction pipe comprises a main pipe and multiple branch pipes, and the branch pipes are connected with the dust removal openings in a one-to-o