PROBLEM TO BE SOLVED: To provide an agricultural house which effectively prevents the inside of the house from becoming hot during the daytime in summer. SOLUTION: This greenhouse is a greenhouse in which a ceiling 21 and a side wall 23, and a front wall 25 and a back wall 27 are formed by attaching a vinyl sheet to a house frame composed of a support 11, a roof frame 13 and a cross beam 15, and a ground surface 37. The floor surface 29 is dug down by about 1.2 to 1.8 m from the bottom surface, and at least the floor surface of the side wall from the floor surface to the ground surface and the floor surface in the house are formed of tuff stones, An intake chamber 53 is formed by an isolation wall 51 having an opening 55 and substantially parallel to the rear wall, a radiator panel 61 is provided at a communication portion between the intake chamber and the space in the house, and an exhaust fan is provided at the ceiling. It has an exhaust port 57 and sucks outside air into the house interior space through the intake chamber and through the radiator panel, supplies well water and the like to the radiator panel and passes from the intake chamber to the house interior space. Air can be cooled That a semi-underground agricultural houses 10. [Selection diagram] Fig. 1【課題】 夏場の日中におけるハウス内の高温化を効果的に防止する農業用ハウスを提供する。【解決手段】 支柱11と屋根骨13と横桁15によるハウス骨組みにビニールシートを張り付けて天井21及び側面壁23、更に正面壁25及び背面壁27が形成される温室であって、地表面37から１．２乃至１．８ｍ程度掘り下げられた床面29とされ、前記側面壁の少なくとも前記床面から前記地表面までとハウス内の前記床面は凝灰岩石により形成され、前記背面壁に吸気開口55を有し、前記背面壁と略平行な隔離壁51によって吸気室53を形成し、当該吸気室とハウス内空間との連通部にラジエータパネル61を有し、前記天井に排気ファンを備える排気口57を有し、外気を前記吸気室を介し且つ前記ラジエータパネルを通して前記ハウス内空間に吸気し、前記ラジエータパネルには井水等を供給して前記吸気室から前記ハウス内空間に通過する空気を冷却可能とする半地下式農業用ハウス10とする。【選択図】 図１
