Quick liquid injection structure and aerosol generating device

Disclosed are a quick liquid injection structure and an aerosol generating device. The quick liquid injection structure includes a valve body, a liquid-injection tube and an elastic member. A gas exhaust hole is disposed on a side wall of the valve body. The liquid-injection tube is coaxially disposed within the valve body, and the liquid-injection tube comprises a liquid-inlet port, a liquid injection passageway and a liquid-outlet hole which are fluidly communicated. The elastic member is sleeved outside the liquid-injection tube, one end of the elastic member abuts against a first abutment part that extends from an outer wall of the liquid-injection tube, and another end of the elastic member abuts against a second abutment part that extends from an inner wall of the valve body. An exhaust gap is formed between the valve body and an end of the liquid-injection tube close to the liquid-inlet port.