Continuous production device for vanillic acid

The utility model provides a continuous production device for vanillic acid, which relates to the technical field of vanillic acid and comprises an integral structure and an auxiliary structure positioned at the center of the bottom of the integral structure. The overall structure comprises a connecting plate, a box body is fixedly connected to the center of the top of the connecting plate, an air outlet pipe is arranged at the center of the outer surface of the rear side of the box body in a penetrating mode, a first filter screen is fixedly connected to the end face of the rear side of the air outlet pipe, and an exhaust fan is fixedly installed at the center of the inner surface of the rear side of the box body; and centrifugal machines are fixedly mounted at the positions, close to the top, of the front inner surface and the rear inner surface of the box body. In the actual use process, waste gas in the box body can be sucked into the gas outlet pipe through the exhaust fan, then is filtered by the first