NOVELTY - A methanol is produced by entering a coke-oven gas into a buffering constant-pressure gas tank, coke-oven gas pressurizer pumps the air out of cabinet and compresses pressure at 2.5 MPa, where gas enters into a fine desulfurization device, desulfurizing the gas at less than 0.1 ppm, and coke-oven gas methanation content is up to 26%, adopting pure-oxygen catalytic partial oxidation conversion process in methane gas and small multi-carbon hydrocarbon, and converting into methanol to useful ingredients, e.g. carbon monoxide and hydrogen.    USE - Method for the production of methanol (claimed).    ADVANTAGE - The method is low cost, and reduces coking plant air pollution to the surrounding environment.    DETAILED DESCRIPTION - Production of methanol comprises:    (A) entering a coke-oven gas into a buffering constant-pressure gas tank, coke-oven gas pressurizer pumps the air out of cabinet and compresses pressure at 2.5 MPa, where gas enters into a fine desulfurization device, desulfurizing the gas at less than 0.1 ppm, where coke-oven gas methanation content is up to 26%, adopting pure-oxygen catalytic partial oxidation conversion process in methane gas and small multi-carbon hydrocarbon, converting into methanol to carbon monoxide and hydrogen, and the gas component converted is compressed at 6 MPa through a synthesis gas compressor, entering into the methanol synthesis device at 6 MPa, using three-tower flow, and methanol product gas is sent to high temperature coal tar hydrogenation device in finished product storage tank;    (B) separating the high temperature coal tar hydrogenation process plant coke-oven gas from high temperature coal tar by normal pressure and decompression distillation tower at 380-410 degrees C before the light distillate oil into the hydrogenation reactor at pressure of 12.5-16.8Ma and at 390 degrees C and hydrogen-oil ratio is 800:1600:1 and providing hydrogenation catalyst, carrying out hydrogenation reaction via special coal tar hydrogenation catalyst to produce high-quality of light fuel oil, where methanol synthesis device producing relaxation gas is methanol synthesis tail gas at 2.5 MPa through two primary pressure reducing, and pressure swing adsorption device for producing pure hydrogen 99.99% as high temperature coal tar hydrogenation source of hydrogen; and    (C) separating delayed coking process for producing needle coke oven coke-oven gas from high temperature coal tar hydrogenation device of normal pressure, and decompression tower product soft pitch enters the delay coking device, the high temperature oil gas pressure to high temperature coal tar hydrogenation device explain pitch coke to release for producing pitch coke through hydraulic decoking and calcining device as reactor feed, and coking tower of condensing.