Hydrogen collection device in reation kettle

The utility model relates to a hydrogen collection device in reation kettle, include the hydrogen gas transporting pipe of being connected with the reation kettle top, hydrogen gas transporting union coupling hydrogen gas processing case, the hydrogen gas processing incasement is equipped with the baffle, the baffle separates the inner chamber of hydrogen gas processing case for alkali lye bin and drying cabinet, the top of baffle is equipped with the intercommunication mouth of intercommunication alkali lye bin and drying cabinet, pack alkali lye in the alkali lye bin, be equipped with a plurality of gas guiding baffle in the drying cabinet, gas guiding baffle separates the drying cabinet for a plurality of even gas guide chamber, gas guide chamber is enclosed by the tank wall of two gas guiding baffle and drying cabinet, gas guide chamber one side gas guiding baffle's bottom is equipped with the air guide hole that communicates with next door gas guide chamber, gas guide chamber opposite side gas guiding ba