An object of the present invention is to provide an electric fan heater for agriculture which can improve heat efficiency and prevent the electric heater from being overheated by increasing a heat-emitting area of the electric heater and an air heating space, prevent leaves of a plant from being burnt or dried due to hot air by forming an air curtain surrounding the hot air during discharging of the hot air, and also send the hot air far away by delaying a temperature drop caused by heat exchange with the surrounding air during discharging of the hot air using the air curtain. The electric fan heater for agriculture according to the present invention comprises: an air blower which is adapted to suction air through an inlet and emit the air through an outlet, and a heater which is installed at the outlet of the air blower to heat and discharge the emitted air, wherein the heater includes: an outer barrel of which one end is connected to the outlet of the air blower and which has a long cylindrical shape an inner barrel installed inside the outer barrel and having a long cylindrical shape, wherein an outer circumferential surface of the inner barrel is spaced apart from an inner circumferential surface of the outer barrel by a certain gap to thereby form a first air discharge chamber between the inner barrel and the outer barrel and an electric heater disposed inside the inner barrel, wherein a heating pipe is wound in a spiral shape to form a second air discharge chamber inside the inner barrel, and an outer side of the heating pipe wound in the spiral shape is brought into contact with the inner circumferential surface of the inner barrel.COPYRIGHT KIPO 2014본 발명은 전기히터의 발열면적 및 공기의 가열공간을 더욱 증대시켜 열효율을 높이고 전기히터의 과열을 방지할 수 있으며, 열풍의 토출시 열풍을 감싸는 에어커튼을 형성하여 뜨거운 열풍에 의해 식물의 잎이 타거나 말라 버리는 것을 방지할 수 있고, 또한 에어커튼에 의해 열풍 토출시 주변의 공기와 열교환하여 온도가 낮아지는 것을 최대한 지연시켜 열풍을 더욱 멀리 보낼 수 있는 농업용 전기 온풍기를 제공하는데 목적이 있다.본 발명의 농업용 전기 온풍기는, 흡입구로 공기를 흡입하여 배출구로 공기를 배출하도록 된 송풍기와, 송풍기의 배출구에 설치되어 배출되는 공기를 가
