In the present invention, disclosed is an indirect heating type pest controlling device by fumigation and smoking for preventing pest through indirectly heating chemicals by using solid or liquid fuel as a heating source in a plant growing facility such as a green house. The pest controlling device comprises a main body having an opened upper part and a concave container accommodating part inside thereof a chemical case positioned at the upper part of the main body and containing chemicals for preventing pest a heating member for delivering heat to the chemical case to heat the chemicals a fuel container positioned at the container accommodating part of the main body, including an opened upper part for forming a fuel intake and adjusting fire according to the size of the fuel intake and the height of the fire, and containing fuel for heating the heating member and a supporting member having one side combined with the upper part of the main body for the heating member to be positioned distantly from the fire intake of the fuel container and the other side for supporting the heating member, and dropping the heating member for closing an air passage connecting the upper part of the main body and the fuel container when atmospheric temperature exceeds a predetermined temperature. The present invention can stably control combustion amount for indirectly heating the chemicals with adequate combustion amount requested by fumigation and smoking step and prepare a safety device to prevent heated high temperature fuel from being leaked, thereby preventing fire.COPYRIGHT KIPO 2014본 발명은 온실 등의 식물 재배 시설에서 고체 또는 액체 연료를 열원으로 사용하여 약제를 간접 가열하여 병해충을 방지하기 위한 간접 가열식 훈증훈연 방제장치를 개시한다.개시된 간접 가열식 훈증훈연 방제장치는, 상부가 개방되고 내부에 오목하게 패인 용기 수용부를 갖는 본체, 본체 상부에 위치하고 병해충을 방제하기 위한 약제를 수용하기 위한 약제 케이스, 약제를 가열하기 위하여 약제 케이스에 열을 전달하는 가열부재, 본체의 용기 수용부에 위치하고 화구의 크기와 연료 높이에 따라 화력이 조절될 수 있도록 개구된 상부가 화구를 형성하고 가열부재를 가열하기 위한 연료를 보유하는 연료용기, 가열부재가 연료용기의 화구로부터 일정 거리 떨어져 위치하도록 일측이 본체 상부에 결합되고 타측이 가열부재를 지지하며 분위기 온도가 일정
