Portable labor protecting device for cooling human body and preventing heat

The utility model discloses a portable body-cooling heat-protective labor-protecting device which is suitable for the operation in the outdoor high-temperature environments. The device comprises an insulated cabinet (1), an insulating gas transmission hose (6), a respiratory protection mask (7) and back straps (8), and the temperature of air which is inhaled into the lung by a user is reduced through the cooling function of ice block positioned in the insulated cabinet (1), thereby the heat dissipation capacity of the lung is enhanced. The device itself does not need the electrical connection with exterior, thereby having no influence on the body motion of the user and having light weight. As the cooling function of the device directly acts on the lung of the user, air conditioning disease, cold or other body troubles of the human body caused by using an air conditioner or other body-cooling devices can not be generated.