Abstract: A self-contained self-cleaning air cleaner that includes a housing with a first partition mounted within the housing to divide the interior of the housing into a clean air chamber and a filtering chamber. The first partition has an opening which provides fluid communication between the filtering and cleaning chambers. A filtering apparatus is disposed within the filtering chamber to provide filtered fluid communication between the filtering chamber and the clean air chamber through the opening in the partition. A fan or blower is mounted within the housing for drawing air through the housing from a dust-laden air inlet which opens into the filtering chamber to a clean air outlet which opens into the clean air chamber. A small capacity compressor is integrally mounted within the housing and is directly driven by the fan or blower.