Impurity filtering device for dairy product production

The utility model discloses an impurity filtering device for dairy product production, which belongs to the technical field of filtering devices, and comprises a filtering box, and a filtering net rack is mounted in the filtering box close to the upper part; when impurities attached to the filter screen frame need to be cleaned, the electric control valve opens the water inlet pipe and opens the valve of the blow-off pipe, so that back-flushing liquid enters the back-flushing pipe through the branch pipe and then is sprayed out through the spray head, when the back-flushing liquid passes through the turbine, the turbine is driven to rotate, the turbine is fixedly connected with the branch pipe, the branch pipe rotates, and the back-flushing liquid flows into the back-flushing pipe through the spray head. The branch pipe drives the backflushing pipe to rotate, the filter screen frame can be uniformly flushed, impurity mixed backflushing liquid is discharged from the blow-off pipe, the filter screen frame can b