Corrosion -resistant filter bag

The utility model belongs to the technical field of bag -type dust collection technology and specifically relates to a corrosion -resistant filter bag, including the neck ring, the annular filter cloth includes outer cloth and inlayer cloth, be equipped with between outer cloth and the inlayer cloth and strengthen anti -corrosion coating, outer cloth, through the compression joint between inlayercloth and the enhancement anti -corrosion coating, wear to be equipped with the spring in the outer cloth, it includes a plurality of horizontal protection muscle to strengthen anti -corrosion coating, a plurality of vertical protection muscle and polytetrafluoroethylene layer, it is equipped with the ring protection muscle vertically to protect the muscle and transversely protect between the muscle, the ring protection muscle respectively and vertical protection muscle and transversely protect and be connected with the connecting piece between the muscle, a plurality of horizontal protectionmuscle, a plurality of ver