NOVELTY - Waste alcohol is purified by injecting waste alcohol in waste alcohol porous spraying plate (3), aligning sprayer with linear blowing air, volatilizing ammonia, circulating waste alcohol, collecting evaporated ammonia, transferring ammonia-free alcohol solution to alcohol storage container, repeating process in which evaporated ammonia is purified by injecting water into ammonia spraying plate (4), allowing evaporated ammonia to make full contact with water or ammonia, circulating dissolved ammonia solution, repeatedly circulating, injecting aqueous ammonia, and repeating process.    USE - Purification of waste alcohol for hotels, offices, and school cafeteria.    ADVANTAGE - Process is economic, environment-friendly, and recycles waste.    DETAILED DESCRIPTION - Waste alcohol is purified by injecting waste alcohol in waste alcohol porous spraying plate in which liquid is linearly falling, aligning sprayer with linear blowing air, volatilizing ammonia, circulating waste alcohol 1-2 times in alcohol porous spraying plate, collecting evaporated ammonia, transferring ammonia-free alcohol solution to storage container through purified liquid alcohol injection, repeating process in which evaporated ammonia is purified by injecting water into ammonia spraying plate in which water is linearly falling, allowing evaporated ammonia to make full contact with water or ammonia to obtain dissolved solution, circulating dissolved ammonia solution in ammonia porous spraying plate, repeatedly circulating until ammonia is completely volatilized, injecting aqueous ammonia into ammonia storage container (10), and repeating process. An INDEPENDENT CLAIM is included for waste alcohol purification device comprising housing (17), waste alcohol circulatory system (1), and ammonia circulatory system (6) in which waste alcohol circulatory system contains waste alcohol pump (14) connected by pipeline to waste alcohol purification chamber (12) and waste alcohol porous spraying plate located in upper outside part of waste alcohol purification chamber, ammonia circulatory system contains ammonia pump (8), located outside ammonia storage container with pipeline connections, where waste alcohol purification and ammonia storage container is in top and bottom of housing through baffle plate (11), blowing system contains fan (16) provided with air inlet (15) containing waste alcohol purification chamber on side, and air outlet (13) containing ammonia water chamber on side, water purification chamber contains feed port (2), and ammonia storage container contains water inlet (5).    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of waste alcohol purification device.    Waste alcohol circulatory system (1)    Feed port (2)    Waste alcohol porous spraying plate (3)    Ammonia spraying plate (4)    Water inlet (5)    Ammonia circulatory system (6)    Ammonia pump (8)    Ammonia storage container (10)    Baffle plate (11)    Waste alcohol purification chamber (12)    Air outlet (13)    Waste alcohol pump (14)    Air inlet (15)    Fan (16)    Housing (17)