Dust laden air is drawn into the dust collector through the inlet due to the suction creted by the exhaust fan and passes through the pleated bag elements. The abrasive resistant inlet promotes dropping out high particulate, generates uniform air flow thus increases the filter life. The dust gets deposited on the outer surface of the pleated bag and clean air flows through the center passage of pleated bag into clean air plenum. Clean air further exts into atmosphere through outlet duct. Pleated bag are periodically and automatically gets cleaned through ait purging. Sequence circuit activities solenoid valves for high pressure air purging of preselcted pleated bag. Dust released from pleated bags slides downward into the hopper further collection into the dust bin.