NOVELTY - A papermaking sludge stack fertilizer manufacturing device comprises a sludge dewatering machine (1); a sludge dryer (2); a mixing tank (3); a bran tank (4); a fermentation tank (5); and a treatment tank (6). The sludge dewatering machine is connected to the sludge dryer via a pipeline. The sludge dryer is provided with a slurry pump and a conveyor for connecting to the mixing tank. The sludge dewatering device is provided with a slurry pump and a pipeline connected to the mixing tank. The bran tank is provided with an organic fertilizer fermenting agent inlet (11).    USE - Papermaking sludge stack fertilizer manufacturing device.    ADVANTAGE - The device has simple structure and low equipment investment, is safe, does not cause pollution, and can utilize paper mill sludge waste into valuable material.    DETAILED DESCRIPTION - A papermaking sludge stack fertilizer manufacturing device comprises a sludge dewatering machine (1); a sludge dryer (2); a mixing tank (3); a bran tank (4); a fermentation tank (5); and a treatment tank (6). The sludge dewatering machine is provided with a slurry pump and a pipeline and is connected to the sludge dryer via a pipeline. The sludge dryer is provided with a slurry pump and a conveyor for connecting to the mixing tank. The sludge dewatering device is provided with a slurry pump and a pipeline connected to the mixing tank. The bran tank is provided with an organic fertilizer fermenting agent inlet (11) and a conveyor connected to the mixing tank. The mixing tank is provided with a conveyor connected to the fermentation tank. The fermenting tank is connected to the treatment tank and provided with a conveyor. The treatment tank is provided with a disinfectant inlet, amino acid, humic acid complex inlet, and finished product outlet.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the papermaking sludge stack fertilizer manufacturing device.    Sludge dewatering machine (1)    Sludge dryer (2)    Mixing tank (3)    Bran tank (4)    Fermenting tank (5)    Treatment tank (6)    Organic fertilizer fermenting agent inlet (11)