Air filtering device for chemical production

The utility model discloses an air filtering device for chemical production, and belongs to the technical field of air filtering. An air filtering device for chemical industry production comprises an air filtering box and an air channel, the air filtering box is rotationally connected to one end of the air channel, a filtering net is embedded in a front end opening of the air filtering box, filtering cotton is arranged at the position, located on the inner wall of the air filtering box, behind the filtering net, and a cover turning mechanism is arranged between the air filtering box and the air channel. The cover turning mechanism comprises a spring sleeve, a jacking sliding rod, a turning hinge and an anti-disengaging support. According to the utility model, through the arrangement of the turning cover mechanism, the air filtering box is turned over at the port of the air duct through the turning hinge and is opened, so that the filtering cotton in the air filtering box can be replaced on the premise that th