PURPOSE: A brooder having an outdoor air supplying function is provided to improve a quality of air inside cattle shed because fresh and clean air outside the cattle shed is supplied to inside the cattle shed by using an air duct and inhalation fan. CONSTITUTION: A brooder having an outdoor air supplying function comprises a body(10), a heat reflective mirror(16) of a doughnut shape, and a control box(40). A through-hole(11) is formed in the upper central part of the body and an auxiliary cover(12) is assembled in an outer circumference of the body and a temperature sensor(15) is assembled in the inner surface of the body. The heat reflective mirror is assembled inside of the body and a sheath heater(30) is installed in the inner surface of the heat reflective mirror. The duct is connected to the upper part of the auxiliary cover, thereby making the outdoor air flow into inside the body. The control box is connected to the temperature sensor, thereby controlling a temperature of the sheath heater and having an over-current protection function.본 발명은 병아리, 돼지 등의 가축을 사육할 때에 사용되는 육추기에 관한 것으로서 특히, 외부공기를 흡입할 수 있는 구성을 갖음으로써 축사 외부의 신선한 공기를 팬으로 흡입하여 전기히터에서 발생하는 열과 함께 삿갓 아래서 생장하는 가축에게 공급하므로서 가축이 따뜻한 온도와 맑은 공기를 공급받으며 성장하므로서 호홉기질환을 예방하고 쾌적한 사육환경을 마련할 수 있는 실외공기 공급기능을 갖는 육추기에 관한 것이다.
