Gas-liquid reverse transfer bio-membrane reactor for preparation of ethyl alcohol through fermentation of waste gas CO/CO2

The invention discloses a gas-liquid reverse transfer bio-membrane reactor for preparation of ethyl alcohol through fermentation of waste gas CO/CO2. The gas-liquid reverse transfer bio-membrane reactor comprises a shell upper part and a shell lower part which are connected through a flange, and an exhaust hole is formed in the top of the shell upper part. The gas-liquid reverse transfer bio-membrane reactor is characterized in that a plurality of spraying devices are evenly arranged in the shell upper part; a nutrient solution is sprayed downwards by the spraying devices; an aerator is arranged in the shell lower part, and the waste gas is aerated upwards by the aerator; an area between the aerator and the spraying devices is a filler area; a plurality of fillers are placed in the fillerarea, a bio-membrane adheres to the surfaces of the fillers, and the nutrient solution sprayed by the spraying devices provides nutrient substances for microorganisms on the bio-membrane; the nutrientsolution is sprayed to th