NOVELTY - The apparatus has biogas fermentation jar which is set semi-underground, and divided into material liquefying/acidification and biogas fermentation cavity and set with temperature-controlling device and pH electrode monitoring device. The automatic alkali adding device is connected with biogas fermentation cavity by pump. The circular opening sets return tube while slagoff opening at bottom is connected with deposition tank. The fermentation jar is connected with biogas thionizer (13) and dehydration device by biogas outlet, and connects with gas storage jar with methane density detector (16).    USE - For biogas production using human and animal excreta.    ADVANTAGE - Increases the use of bio-energy while preventing bad odor of human and animal excreta and discharged of harmful gas to obturator.    DETAILED DESCRIPTION - The integrative designed biogas ferment device with two chambers includes material storage tank, constant-volume material tank, feeding pump (3), fermentation cavity and biogas fermentation cavity of material liquefying and acidification course (4), biogas-liquid intrinsic cycle stirrer (6), automatically alkali adding device, biogas and dregs discharge hole, biogas-liquid and slag separation deposition tank (9), biogas-liquid mycoprotein flocculating tank, solar collector, biogas outlet, biogas thionizer, seeper groove (14). The apparatus also includes elevation methane storage jar, online methane density detector, pH detector for biogas fermentation cavity (17), water level detector of biogas-liquid fermentation cavity, temperature detector of biogas liquefying and acidification cavity and fermentation cavity (19), intrinsic cycle temperature-controlling device of liquefying and acidification cavity (20), redox potential monitor in biogas tank and programmable logic controller (PLC) (22).    DESCRIPTION OF DRAWING(S) - The figure shows the perspective view of the integrative designed biogas ferment device.    Feeding pump (3)    Acidification course (4)    Biogas-liquid intrinsic cycle stirrer (6)    Biogas-liquid and slag separation deposition tank (9)    Biogas thionizer (13)    Seeper groove (14)    Methane density detector (16)    PH detector for biogas fermentation cavity (17)    Temperature detector of biogas liquefying and acidification cavity and fermentation cavity (19)    Intrinsic cycle temperature-controlling device of liquefying and acidification cavity (20)    PLC (22)