Helmet with mask external hanging function

A helmet with a mask external hanging function comprises a helmet body, two fixing protrusions are symmetrically arranged on the two sides of the helmet body, and hanging lug fixing rope grooves usedfor fixing hanging lug fixing ropes are formed between the two fixing protrusions and the helmet body. Two hanging nails used for fixing the hanging lug fixing ropes are oppositely arranged on the outer wall of the rear portion of the helmet body. The fixing protrusions are symmetrically arranged on the two sides of the helmet body, and the hanging lug fixing rope grooves used for fixing the hanging lug fixing ropes are formed between the fixing protrusions and the helmet body, so that the hanging lug fixing ropes of the mask do not press acupoints and nerves of ear contact parts any more, andhealth hazards do not exist. After a user wears the helmet, the user can conveniently wear the mask again, and when the helmet is used, the user only needs to hang the two ear-hanging fixing ropes ofthe mask into the ear-hang