Pipeline filtering device for production of high-build coating base stock

The utility model discloses a pipeline filtering device for thick paste type coating base stock production, the pipeline filtering device comprises a filtering pipeline, a filtering net, a negative pressure pump and a timing discharging device, the top of the filtering pipeline is detachably connected with the bottom of a feeding pipe, and the joint is sealed; a filter screen detachably arranged on the inner side of the filtering pipeline is arranged on the lower side of the feeding pipe, the negative pressure pump is fixedly installed on the outer wall of the filtering pipeline and connected with an inner cavity in the top of the filtering pipeline through an exhaust pipe, a timing discharging device is arranged at the inner bottom of the filtering pipeline, and the inner bottom of the filtering pipeline is sealed through a positioning discharging device. Compared with the prior art, the filtering device has the advantages that when the filtering net is used for filtering the thick-paste type coating base ma