Liquid dispenser

A liquid dispenser, comprising a pumping structure and a pressure-accumulation ejecting structure which cooperate for use, wherein the pumping structure comprises a main frame, a liquid storage cavity and a piston rod, wherein

• the liquid storage cavity is built into the main frame, and a lower end of the liquid storage cavity is provided with a liquid inlet and a liquid outlet which can be opened and closed;
• the piston rod can move upward and downward along the liquid storage cavity under an action of a driving member, when the piston rod moves downward, only the liquid outlet is in an open state, and when the piston rod moves upward, only the liquid inlet is in an open state;
• the main frame is provided with a diversion channel and a guiding portion, the diversion channel is located at one side of the liquid storage cavity, one end of the diversion channel communicates with the pressure-accumulation ejecting structure, and the other end of the diversion channel communicates with the guiding portion;
• the guiding portion is located below the liquid storage cavity and comprises a liquid inlet channel configured to enable a liquid storage bottle to communicate with the liquid inlet, and a liquid outlet chamber configured to enable the liquid outlet to communicate with the diversion channel.