Gasification black water odor eliminating method

The invention discloses a gasification black water odor eliminating method. The method comprises: recovering waste heat of semi-water gas, produced by a gasification furnace, through a waste heat recovery device, carrying out dedusting through a bag-type dust collector, feeding the semi-water gas subjected to dedusting into a dividing wall type cooler, carrying out cooling to the normal temperature, condensing the separated condensed water through the dividing wall type cooler, pressing the condensed water, feeding the condensed water into an inlet at the upper part of a stripping tower, feeding stripping gas out of the stripping tower into a gasification furnace or a boiler, filtering one part of the waste water out of the stripping tower through a filter so that the impurities are removed, respectively feeding the waste water into a gasification furnace jacket and the waste heat recovery device and treating the other part of the waste water through a water treatment process. The method greatly reduces the g