NOVELTY - A system for manufacturing pentane ethanol environmental-friendly compound fuel comprises an ethanol generating device, an anaerobe reactor, an ethanol processing device, a pentane pre-treatment device, a pentane ethanol compounding device and a district for storing the pentane ethanol fuel product, where a waste residue transmission channel (2) is set in the ethanol generating device (1) to be connected with the anaerobe reactor (3). A methane transmission channel (4) is set in the anaerobe reactor (3) to be connected with the ethanol generating device (1).    USE - The system is used for manufacturing pentane ethanol environmental-friendly compound fuel (claimed).    ADVANTAGE - The system for manufacturing pentane ethanol environmental-friendly compound fuel can replace the gasoline. Its octane level and the environmental-friendly index are better than the gasoline.    DETAILED DESCRIPTION - A system for manufacturing pentane ethanol environmental-friendly compound fuel comprises an ethanol generating device, an anaerobe reactor, an ethanol processing device, a pentane pre-treatment device, a pentane ethanol compounding device and a district for storing the pentane ethanol fuel product, where a waste residue transmission channel (2) is set in the ethanol generating device (1) to be connected with the anaerobe reactor (3). A methane transmission channel (4) is set in the anaerobe reactor (3) to be connected with the ethanol generating device (1). An ethanol transmission channel (5) is set in the ethanol generating device (1) to be connected with the ethanol processing device (6). An ethanol transmission channel (7) is set in ethanol processing device (6) to be connected with the pentane ethanol compounding device (10). A pentane transmission channel (9) is set in the pentane pre-treatment device (8) to be connected with the pentane ethanol compounding device (10). A pentane ethanol transmission channel (11) is set in pentane ethanol compounding device (10) to be connected with the district for storing the pentane ethanol fuel product (12).    DESCRIPTION OF DRAWING(S) - The drawing shows the side view of the system for manufacturing pentane ethanol environmental-friendly compound fuel.    Ethanol generating device; (1)    Anaerobe reactor; (3)    Methane transmission channel; (4)    Ethanol transmission channel; and (5)    Ethanol processing device (6)