System for conveniently converting feed gas for ammonia synthesis and methanol synthesis production

The utility model relates to a system for conveniently converting feed gas for ammonia synthesis and methanol synthesis production. Comprising a coal water slurry gasification device, a feed gas outlet of the coal water slurry gasification device is connected with a steam-water separator, a feed gas outlet of the steam-water separator is connected with an ammonia synthesis device through a first tee joint, a first electric valve and a conversion unit, and a third end of the first tee joint is connected with a methanol synthesis device through a second electric valve and a non-conversion unit. A second tee joint is arranged between the third end of the first tee joint and the second electric valve, a third tee joint is arranged between the second electric valve and the non-conversion unit, and an additional feed gas conversion unit is arranged between the third end of the second tee joint and the third end of the third tee joint; the additional raw material gas conversion unit is arranged on the non-conversion