PROBLEM TO BE SOLVED: To prevent a tip of an inner pipe from being caught by an O-ring in an injection port and damaging the O-ring in a gas spraying type liquid injection device in which a multiple pipe including an outer pipe for atomization gas and the inner pipe for liquid is implanted into the injection port arranged in an inlet of an injection container to atomize and supply the liquid into the injection container.SOLUTION: An injection container 21 includes an injection port 32. The injection port 32 comprises: a recess 32A; a passage 32B for liquid having an inlet end that opens to a bottom face of the recess 32A, and an exit end reaching an internal space of the injection container 21; a guide member 33 which is fitted into the recess 32A; a pipe line 34 formed in the guide member 33 and having an inlet end into which an inner pipe 17A is implanted, and an exit end facing the inlet end of the passage 32B for liquid; and an O-ring 35 which is arranged between the guide member 33 and a bottom face of t
