Self-cleaning air filter for air separation

The invention relates to the field of air filters, in particular to a self-cleaning air filter for air separation. The invention provides a self-cleaning air filter for air separation. The self-cleaning air filter for air separation can perform back-flushing self-cleaning without controlling opening and closing of a valve. A self-cleaning type air filter for air separation comprises a separator, an air inlet pipe, an air outlet pipe, valves, a filter element, a back flushing mechanism and the like, the right side of the upper portion of the separator is connected with the air inlet pipe, the upper side of the separator is connected with the air outlet pipe, the valves are arranged on the air outlet pipe and the air inlet pipe, and the filter element is arranged in the separator. And a back flushing mechanism for cleaning the filter element is arranged on the right side of the lower part of the air outlet pipe. The sliding frame is in sliding fit with the lifting frame through the sliding groove, so that the l