NOVELTY - A new hydrogen and methane producing device comprises liquid distributing pipe (1), sludge discharging outlet (2), sludge bed reaction region (3), gas-liquid balance tank (4), separating plate (5), three-phase separator (6), gas discharging pipe (7), liquid discharging pipe (8), flow meter (9), gas inlet (10), liquid inlet (11), liquid outlet (12), intermediate tank (13), primary liquid outlet (14), reflowing liquid inlet (15), water outlet (16), baffle plate (17), pH meter (18), acid and alkali solution inlet (19), acid liquid tank (20), alkali liquid tank (21), and primary liquid inlet (22).    USE - The new hydrogen and methane producing device is useful for treating high-concentration organic wastewater and for anaerobic fermentation digestion treatment to obtain hydrogen gas and methane.    ADVANTAGE - The new hydrogen and methane producing device prevents pollution and protects the environment; thus, achieving harmless treatment and recycling of the waste liquid.    DETAILED DESCRIPTION - A new hydrogen and methane producing device comprises a liquid distributing pipe (1), a sludge discharging outlet (2), a sludge bed reaction region (3), a gas-liquid balance tank (4), a separating plate (5), a three-phase separator (6), a gas discharging pipe (7), a liquid discharging pipe (8), a gas flow meter (9), a gas inlet (10) of balance tank, a liquid inlet (11) of balance tank, a liquid outlet (12) of balance tank, an intermediate tank (13), a primary liquid outlet (14) of intermediate tank, a reflowing liquid inlet (15) of intermediate tank, a water outlet (16) of intermediate tank, a baffle plate (17), a pH meter (18), an acid and alkali solution inlet (19), an acid liquid tank (20), an alkali liquid tank (21), and a primary liquid inlet (22); where the device is a vertical post with bottom being arranged with a liquid distributing pipe for receiving the organic waste liquid, and multiple one-way liquid inlets are provided on the liquid distributing pipe; the sludge bed reaction region takes up bottom and middle of the vertical post; the particulate sludge comprises special anaerobic fermentation digestion strain; a three-phase separator is arranged at upper part of the vertical post, and the separating plate is arranged between the sludge bed reaction region and the three-phase separator; the separating plate comprises bio-filler to prevent sludge leaking; the bio-filler of the separating plate mainly contains a slow-release agent, which slowly releases micro elements to keep meeting the microorganism demand; the separating plate is rotatably adjustable in 0-90 degrees ; the top cover of the three-phase separator is provided with a gas discharging pipe and a pipeline is connected with the gas flow meter; the side of the three-phase separator is arranged with a liquid discharging pipe, where the part of liquid flows out and enters the gas-liquid balance tank; one side of the gas-liquid balance tank is also provided with a gas inlet that receives gas from the gas discharging pipe; one side of the balance tank is also provided with a liquid inlet that receives part of liquid from the liquid discharging pipe; the lower end of the gas-liquid balance tank is provided with a liquid outlet; the gas and liquid are balanced in the tank, and an intermediate tank is arranged below the gas-liquid balance tank; a reflowing liquid inlet is set at one side of the intermediate tank to receive the part liquid from the liquid outlet of balance tank; a water outlet is also arranged above the side of the intermediate tank, and a primary liquid outlet is provided below the side of the intermediate tank; the primary liquid meets and is mixed with the part of reflowing liquid entering from the reflowing liquid inlet and flows out from the primary liquid outlet to bottom of the device for the anaerobic fermentation in the device; the middle at the other side of the intermediate tank is also provided with an acid and alkali solution inlet and with a pipe connected with the acid liquid tank and alkali liquid tank, to regulate acidity and alkalinity of the liquid in the tank; a baffle plate is arranged at the upper cover of the intermediate tank and located close to the water outlet and at one side of the reflowing liquid inlet, to prevent the water inlet and outlet interfering each other; a pH meter is also arranged at the upper cover to measure the pH value of liquid; and the bottom of the device is provided with a sludge discharging outlet for sampling the sludge to be tested.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the new hydrogen and methane producing device.    Liquid distributing pipe (1)    Sludge discharging outlet (2)    Sludge bed reaction region (3)    Gas-liquid balance tank (4)    Separating plate (5)    Three-phase separator (6)    Gas discharging pipe (7)    Liquid discharging pipe (8)    Gas flow meter (9)    Gas inlet (10)    Liquid inlet (11)    Liquid outlet (12)    Intermediate tank (13)    Primary liquid outlet (14)    Reflowing liquid inlet (15)    Water outlet (16)    Baffle plate (17)    PH meter (18)    Acid and alkali solution inlet (19)    Acid liquid tank (20)    Alkali liquid tank (21)    Primary liquid inlet (22)