NOVELTY - Liquid-solid fluidized bed microbial fuel cell hydrogen generating device comprises a sewage inlet, a sewage outlet, a sewage inlet pre-distribution chamber, a liquid distribution plate, a fluidized bed anode body, a fluidized bed expansion section, fluid particles, a sealing cover, a gas collecting outlet, a test port, an anode, a conductive wire, a cathode, a load, a cathode chamber and a regulated or stabilized voltage supplier. The sewage inlet is arranged at the center of the bottom of the device and the sewage outlet is arranged on the side wall of the fluidized bed anode body.    USE - Used as a liquid-solid fluidized bed microbial fuel cell hydrogen generating device.    ADVANTAGE - The device: is economical; has high power generation performance, wide operation area, easy operation and good anaerobic fluidized bed mass transfer effect.    DETAILED DESCRIPTION - Liquid-solid fluidized bed microbial fuel cell hydrogen generating device comprises a sewage inlet, a sewage outlet, a sewage inlet pre-distribution chamber, a liquid distribution plate, a fluidized bed anode body, a fluidized bed expansion section, fluid particles (filler), a sealing cover, a gas collecting outlet, a test port, an anode, a conductive wire, a cathode, a load, a cathode chamber and a regulated or stabilized voltage stabilizer. The device is constructed by assembling and fitting the components. The sewage inlet is arranged at the center of the bottom of the device and the sewage outlet is arranged on the side wall of the fluidized bed anode body and it is 30-80 mm away from the top. The upper side of the sewage inlet is provided with the pre-distribution chamber, which is connected to the anode fluidized bed via a flange. The liquid distribution plate is arranged between the pre-distribution chamber and the fluidized bed anode body. The fluid particles as fillers are mounted in the anode fluidized bed, which are mixed with the anaerobic mud and the carrier particles are added to the fluidized bed reaction area. The anode electrode is made from graphite carbon bar, which is vertically arranged at the inner side of the fluidized bed anode body and its bottom end is inserted into the fluid particle to conduct the electrons generated by the organic substance via degradation. The cathode with the membrane structure uses the platinum-loaded carbon paper membrane. The anode and the cathode are separated by a proton exchange membrane. The other end of the graphite carbon bar anode is connected to the cathode having a platinum-mounted carbon paper membrane structure by welding the conductive wire, which is connected to the load and voltage supplier in series to form a closed loop. The test ports arranged in vertical direction are arranged on the outer side wall of the fluidized bed anode body for testing the pressure of the fluidized bed layer and the flow speed of the fluid particles. The bacterial liquid is uniformly distributed in the pre-distribution chamber of the sewage inlet to achieve thorough fluidization of fluid particles. The sewage enters the fluidized bed anode body from the sewage inlet through the sewage inlet pre-distribution chamber and the liquid distribution plate. The anode is in the sealed state and is kept in the anaerobic environment. The sewage outlet is arranged at the lower side of the sealing cover. The anode and the cathode are kept at 10-20 mm away from each other and are connected to a resistance box in series, where the voltage supplier is used for stabilizing the external voltage in the circuit to overcome the catalytic potential of the cathode. Some 2-10 test ports are arranged in vertical direction and are arranged on lower middle part of the side wall of the fluidized bed anode body made from organic glass. The cathode chamber is connected to the fluidized bed anode body via a flange, and the side close to the cathode chamber is provided with a cathode made of platinum-loaded carbon paper membrane. The gas collecting outlet is arranged on the side wall at the top of the cathode chamber.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the liquid-solid fluidized bed microbial fuel cell hydrogen generating device.