The utility model relates to a compound fertilizer production field discloses a multi -functional production system of compound fertilizer very much. This multi -functional production system of compound fertilizer, including cylinder material feeding system, its characterized in that: cylinder material feeding system connects raw material lifter, and raw material lifter's export below is provided with the feed bin, corresponds below the discharge gate of feed bin to be provided with finished product conveyer belt, and packing machine is installed to the finished product conveyer belt end. The utility model discloses simple structure, convenient to use, reasonable in design uses in a flexible way, change the cylinder line into cylinder the multi -functional production line of mixing promotes the mixing productivity, solves april mixing demand exceeds supply's a difficult problem, is suitable for extensive popularization and application.