The present invention relates to a portable hair removal apparatus having a replaceable laser light beam cartridge and a replaceable cooling cartridge. More particularly, the present invention relates to a laser light beam emitting apparatus, a hair removal apparatus, used for skin beauty treatments using a laser light beam. Furthermore, the hair removal apparatus can calm down skin which is irritated by heat generated during hair removal treatment which uses a laser light beam, thereby preventing damage to the skin. Moreover, the hair removal apparatus can be used as a multi-purpose skin beauty treatment apparatus for skin massage, skin whitening, cuticle removal, etc. as well as for hair removal. A main body is provided with a laser light beam cartridge which is mounted to or removed from the mounting portion and which is equipped with a laser light beam outputting portion, a cooling cartridge which is equipped with a contact-type heat absorbing portion. To achieve the above object, the portable hair removal apparatus includes a main body with a mounting portion, a laser light beam cartridge which is mounted to or removed from the mounting portion and which is equipped with a laser light beam outputting portion, and a cooling cartridge which is mounted to and removed from the mounting portion and is equipped with a contact-type heat absorbing portion.