Portable blowing and sucking machine driven by micro two-stroke engine

An idea and a principle that a firing point of a spark plug is arranged at a focal point of a combustion chamber can be generalized to various engines and instrument equipment. A portable blowing and sucking machine driven by micro two-stroke engine comprises a security key (62) and a lock handle (61) additionally arranged on a blowing and sucking machine handle, a micro-turning air pipe (65), a micro-turning tube base (64) and a microswitch (65), wherein a shock-absorbing cushioning device (63) is arranged between the handle and a blowing and sucking machine body; a starting mode of starting a pull handle (59) and a pedal position (60) together is adopted; an oil tank is transparent for seeing an oil material and is formed by blow molding of transparent high-density polyethylene; a carbureter is provided with a touch device for automatically opening an air door of a chocking door hook (67) and a throttle button (66); the inner wall of a combustion chamber adopts a parabola shape; and the firing point of the