Resin filtering device and coating production system

The utility model relates to a resin filtering device and a coating production system. The resin filtering device comprises a production kettle, a coarse filter, a fine filter and a delivery pump, the production kettle is used for diluting resin, a discharge port of the production kettle is communicated with a delivery pipe, the coarse filter is connected with the delivery pipe and used for coarsely filtering the resin flowing through the coarse filter, and the fine filter comprises a first barrel and a filter bag. The first barrel is connected with the conveying pipe, the first barrel is located behind the coarse filter in the flowing direction of the resin in the conveying pipe, and the filter bag is arranged in the first barrel and used for conducting fine filtration on the resin flowing into the first barrel. And the conveying pump is connected with the material conveying pipe, is positioned between the coarse filter and the fine filter, and is used for pumping the resin from the coarse filter to the fine