NOVELTY - Mud membrane coupled duplex integrated high efficient anaerobic reactor comprises granular sludge anaerobic reaction tank, an anaerobic biological reaction tank, a reflux-flow system, heat preservation system, marsh gas collecting and deodorizing system and automatic control system. The anaerobic granular sludge reaction tank: is carbon-steel seal structure, a water inlet way is bottom-flow water inlet, the upper end is provided with two sets of gas-water separator, the bottom cover is provided with a rotational flow water distributor.    USE - The anaerobic reactor is useful for industrial waste water treatment (claimed).    ADVANTAGE - The anaerobic reactor does not generate organic matter sludge and improves the chemical oxygen demand (CODcr) removing rate in the sewage (claimed). Compared with a conventional anaerobic reactor, the reactor is mainly used in primary treatment for high concentration industrial wastewater, and has high-efficiency recovery of biogas, no odor generation, small occupation space and extremely low energy consumption, high degree of automation, and coupled anaerobic activated sludge treatment and an anaerobic biological membrane method.    DETAILED DESCRIPTION - Mud membrane coupled duplex integrated high efficient anaerobic reactor comprises granular sludge anaerobic reaction tank, an anaerobic biological reaction tank, a reflux-flow system, heat preservation system, marsh gas collecting and deodorizing system and automatic control system. The anaerobic granular sludge reaction tank: is carbon-steel seal structure, a water inlet way is bottom-flow water inlet, the upper end is provided with two sets of gas-water separator, the bottom cover is provided with a rotational flow water distributor, the lower ends are connected with the gas-water separator rotational flow water distributor through the top end of the guide tube, and is connected with the gas-water separator to produce a separate guide tube which passes through the upper end of the rotational flow water distributor an enters the rotational flow water distributor. The tank body is provided with a set of three-phase separators, a first set of three-phase separator is arranged at the top of 1/4 of the tank body, the second set of three-phase separator is arranged in the tank body from the top of 1/2 of the tank body, two sets of gas-water separator upper and lower two sets of three-phase separator after being connected in series with the tank body is connected with the top end of the tank body and lower end provided with a sludge. The anaerobic biological reaction tank: is carbon steel sealing structure, and the filter plate is a top water inlet flow reducing type, the upper end is provided with a suit of gas-water separator, the tank body inner part distance is 30-50 cm and provided with aperture which is buried, the filter plate filling diameter is 15-20 mm of the light ceramic particle filler, filling amount of the water outlet of the anaerobic biological reaction tank pumping to rotational flow water distributor for anaerobic granular sludge in reaction tank is 70% of the whole tank body (75%). The return-flow system adjusts and controls the particle sludge anaerobic reactor flow speed and improves the pollutant removing rate. The heat preservation system for heat preservation to anaerobic granular sludge reaction tank and anaerobic biological film reaction tank, heat preservation material is 8-15 cm rock wool. The marsh gas collecting and deodorizing system has marsh gas desulfurization and deodorization function of marsh gas, mainly comprising a surge tank, a spray deodorization tower and a biogas storage cabinet, a gas-water separator, an anaerobic biological reaction tank gas-water separator of the voltage stabilizing tank is connected with the anaerobic granular sludge reaction tank, and the marsh gas and stabilizing the spray deodorization tower enter into marsh gas storage cabinet for further use, and the controlling device adopts S7 series PLC control.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the mud membrane coupled duplex integrated high efficient anaerobic reactor.