The present invention relates to a device for inspecting a dual-brow container, which comprises: an upper die (100) having a cylinder (110) positioned on an upper part thereof; a first nozzle part (200) inserted into a discharge opening of a container (10) allowing an outer container and an inner container to be coupled to an upper side of a center thereof; lower dies (300) positioned to be opposite to each other by the upper die (100) and a support rod (120); a jig (400) allowing the container (10) to be placed on an upper side of a center of the lower die (300); a second nozzle part (500) positioned at a center of the jig (400) to be in contact with a lower end surface of the container (10); a spring (600) for elastically supporting the lower part of the jig; and a plurality of air switching valves (700-1, 700-2, 700-3, 700-4) connected to a first nozzle part (200) and a second nozzle part (500) to supply air into or inducing air from the container (10), thereby allowing switching between an air supply state and a vacuum state. Thus, it is possible to expect an effect that a user can be supplied with a fixed quantity to be used.
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