Throttling and noise-reducing filter screen regulating valve

The invention aims to provide a throttling and noise-reducing filter screen regulating valve. The throttling and noise-reducing filter screen regulating valve comprises a shell, a valve element, a valve rod, a sleeve and a filter screen body, wherein a flange is fixed above the shell, the sleeve is arranged in the flange in an interference mode, and the valve rod penetrates through the sleeve from top to bottom and extends into the shell; the valve element is arranged in the shell and comprises three stages of protruding shoulders, and the three stages of protruding shoulders are distributed from top to bottom; the end part of the valve rod is connected with the first-stage protruding shoulder; the filter screen body comprises a first-stage filter screen body, a second-stage filter screen body and a third-stage filter screen body, and the first-stage filter screen body is arranged at the part above the first-stage protruding shoulder; the second-stage filter screen body is arranged at the part between the fir