E-liquid pumping assembly and electronic cigarette

An electro cigarette comprising:

• an atomizer;
• an e-liquid pumping assembly connected to the atomizer for supplying e-liquid to the atomizer and comprising a housing, an e-liquid bottle and a pumping head assembly respectively received in the housing;
• the pumping head assembly comprising a piston, a pumping body clamped with the e-liquid bottle by a first sealing portion, a pumping cover clamped with the pumping body, a feeding tube connected to the atomizer and clamped with the pumping body and an e-liquid suction pipe;
• the piston comprising a first upper end exposed outward from the pumping cover and a first lower end inserted into the pumping body;
• the e-liquid suction pipe comprising a second upper end inserted into the pumping body and a second lower end inserted into the e-liquid bottle;
• and wherein the piston is pressed to expel air from the pumping body so that e-liquid can enter the pumping body through the e-liquid suction pipe;
• while the piston is again pressed for pushing the e-liquid out of the pumping body to enter the atomizer through the feeding tube.