NOVELTY - Sewage sludge complete mixed anaerobic fermentation tank gas-liquid mixing stirring device comprises an anaerobic fermentation tank (1), a gas-liquid mixing device (2), a gas lifting and guiding device (3), a gas-collecting diversion trumpet-shaped port (4), a cyclic stirring pump (5), a stock solution feeding pump, a feeding pump, a safety valve, a trapezoidal tank cover, an inverted triangular tank bottom and a methane pipe. The upper end of the anaerobic fermentation tank is connected with the trapezoidal tank cover, and the lower end is connected with the inverted triangular tank bottom.    USE - The sewage sludge complete mixed anaerobic fermentation tank gas-liquid mixing stirring device is useful in sewage sludge treatment industry.    ADVANTAGE - The device can reinforce the stirring strength, and the mixing effect of material and bacterial strain; can improve the processing efficiency; requires less surface area; and is simple in structure and easy to install.    DETAILED DESCRIPTION - Sewage sludge complete mixed anaerobic fermentation tank gas-liquid mixing stirring device comprises an anaerobic fermentation tank (1), a gas-liquid mixing device (2), a gas lifting and guiding device (3), a gas-collecting diversion trumpet-shaped port (4), a cyclic stirring pump (5), a stock solution feeding pump, a feeding pump, a safety valve, a trapezoidal tank cover, an inverted triangular tank bottom and a methane pipe. The upper end of the anaerobic fermentation tank is connected with the trapezoidal tank cover, and the lower end is connected with the inverted triangular tank bottom. The left upper side of anaerobic fermentation tank is connected with the safety valve via a pipeline. The central position of inner cavity of the anaerobic fermentation tank is connected with the gas lifting and guiding device. The lower end of the gas lifting and guiding device is connected with the gas-collecting diversion trumpet-shaped port. The gas-liquid mixing device is arranged below the liquid level of the anaerobic fermentation tank. The ground at the outer side of the anaerobic fermentation tank is provided with the cyclic stirring pump and the stock solution feeding pump. The cyclic stirring pump and the outlet of stock solution feeding pump are connected with the gas-liquid mixing device via the pipeline. The inlet of the cyclic stirring pump is connected to one side of the inverted triangular tank bottom via pipeline, and the other side of the inverted triangular tank bottom is connected with the sludge pipe. The inlet of the stock solution feeding pump is connected to the feeding tank via pipeline. The trapezoidal tank cover is connected with the methane pipe and the gas-liquid mixing device, which is connected to another methane pipe. An INDEPENDENT CLAIM is also included for processing the sewage and sludge by using mixing stirring device, comprising (i) extracting stock solution (sewage and sludge to be treated) by the feeding pump and extracting the fermentation mixing solution in the fermentation tank by the cyclic stirring pump, mixing in the pipeline outside the tank according to the ratio, where the volume ratio is 1:5-40, (ii) conveying the mixed solution into gas-liquid mixing device, then depositing negative pressure self-absorption caused by the gas-liquid mixing device in the methane gas collecting room of fermentation tank, conveying the gas-liquid mixture into the diversion room, using the mixed solution to form gas stripping, and forming circulation by the mixed solution in the fermentation tank, accelerating the internal circulating speed and circulating amount, and mixing the fermentation solution and stock solution in a larger range, (iii) using the gas-collecting diversion trumpet-shaped port to collect the methane produced at the lower part of the anaerobic fermentation tank and lifting to a methane pipe, and discharging from the gas lifting and guiding device, (iv) mixing the stock solution and the anaerobic microorganism in the diversion cylinder in large ratio, conveying it into the reaction zone of the fermentation tank, and performing hydrolysis reaction on the waste-water organic matters (carbohydrate, protein and lipid in the extracellular enzyme under anaerobic hydrolysis reaction), decomposing into sugar, amino acid, and peptide; then under the function of acid-forming bacteria, decomposing sugar, amino acid and peptide into the long-chain fatty acids (propionic acid, butyric acid), so as to decompose into hydrogen, carbon dioxide and acetic acid; under the function of methanobacteria, synthesizing hydrogen, carbon dioxide and acetic acid into methane and carbon dioxide, thus completing the methanation of inorganic and organic matter in the waste-water, recycling methane through a pipeline, and can be used as fuel gas combustion or for power generation, and (v) discharging the fermentation waste solution from the waste liquid water sealing discharge opening, and further processing or selling as the foliar fertilizer of crops, dehydrating the fermentation residue and drying, and preparing into organic agricultural fertilizer.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the sewage sludge complete mixed anaerobic fermentation tank gas-liquid mixing stirring device (Drawing includes non-English language text).    Anaerobic fermentation tank (1)    Gas-liquid mixing device (2)    Gas lifting and guiding device (3)    Gas-collecting diversion trumpet-shaped port (4)    Cyclic stirring pump (5)