The present disclosure relates to a refillable device. The refillable device includes a liquid chamber in the refillable device, a connection end, a sealing component arranged in the connection end, and a rotating mechanism. The liquid chamber is configured for storing tobacco liquid. The connection end is configured for connecting with an open end of a liquid injecting container. The sealing component defines a liquid inlet. The rotating mechanism tightly abuts against the sealing component. The rotating mechanism is rotatable between a first position where the liquid inlet is opened, and a second position where the liquid inlet is sealed.