Process for treating gas water for producing gas by lurgi furnace

The invention relates to gas water treatment method of Luqi furnace coal gas making. It includes the following steps: removing solution gas for high pressure gas liquor; removing solid matter to gain primary gas liquor; removing oil and suspended matter to gain the first stage gas liquor; processing by double mediums filter to gain the second stage gas liquor; stripping by medium pressure stripper to gain final gas liquor; discomposing vapor phase in Luqi furnace. The final gas liquor reclaims changing gas. The second stage reclaims wet gas, processes de-dusting humidifying for crude gas, and reclaims to clean rough gas. The invention increases gas liquor multiplexing ratio by comprehensive processing of multiple step processing and classification reclamation.