The organic fertilizer production line for preparing organic fertilizer from pig manure sewage and pig manure comprises a base, wherein the base is provided with a septic tank, the septic tank is provided with a layered mixer, and the septic tank is connected with the sewage pipe of the external pig house; A sewage filtration equipment for filtering fecal sewage is set at the lower part of one side of the septic tank, the water inlet of the sewage filtration equipment is connected with the middle and lower part of the septic tank through the pipeline, and the fecal sewage after mixing and layering in the septic tank flows into the sewage filtration equipment through the pipeline; A dry material barrel is set on the foundation at the side of the base, a inclined conveying trough is set below the discharge port of the dry material barrel, an interconnected screw mixing mechanism and a screw conveying mechanism are set in the conveying trough, the screw mixing mechanism is located below the dry material barrel, the bottom of the septic tank is connected to the feeding end of the screw mixing mechanism through a defecation pipe, and a packer is connected to the end of the conveying trough corresponding to the discharge end of the screw conveying mechanism.
Powdered organic fertilizer made by organic fertilizer production line can be used for orchard fertilizer, tea garden fertilizer and vegetable fertilizer, which can turn waste into treasure and produce considerable economic benefits; At the same time, realize pollution control.