Multifunctional instant-release type handheld fire extinguisher

A multifunctional instant-release type handheld fire extinguisher in the technical field of fire fighting equipment comprises the following components: a handle, a fire extinguishing device, a cutting device and a hammer nail. The fire extinguishing device is fixedly equipped in the handle. The cutting device is fixedly connected with the handle. The hammer is provided at the bottom of the fire extinguishing device. The multifunctional instant-release type handheld fire extinguisher can aim at a fire origin part in time for reducing the oxygen content in the air through suffocation and cooling function, thereby reducing the temperature of comburent and realizing fire extinguishing with carbon oxide. Simultaneously glass window or door can be broken in emergency for escaping smoothly. Thirdly, a safe belt can be cut off in time in emergency for escaping smoothly.