The present invention relates to a double zinc-coated steel sheet structure including a sprinkling module, a primary air volume control module, a heat exchange module, a secondary air volume control module, a cooling / heating module and a sterilizing module, ； A door provided at an opening of the casing and having a stepped portion corresponding to a protrusion provided on the casing and being open to the inside of the casing with one end connected to the hinge being rotated and having a stepped engagement with the protrusion, ； A sprinkling module for spraying sterilized medicines or water on the contaminated air, filtering various dirt, dust and primary contaminants in the filter； A primary air volume control module having a plug fan and discharging a part of the air supplied through the water spray module to the outside and moving the remaining part to a cooling / heating module for re-supply in a farm water house； A heat exchange module for transmitting cold air or heat of air exhausted to the outside through the primary air volume control module to outside air supplied from outside； A secondary air volume control module having a plug fan and moving a part of the outdoor air supplied through the heat exchange module and the indoor air supplied through the primary air volume control module to the cooling / heating module； A cooling / heating module having a heat pump and cooling or heating the air supplied through the secondary air volume control module； A sterilization module having a UVC lamp； And a control unit provided on an outer surface of the casing for receiving power from a solar power generation facility and controlling each module.본 고안은 내부에 살수모듈, 1차 풍량제어모듈, 열교환모듈, 2차 풍량제어모듈, 냉·난방모듈, 살균모듈을 포함하는 이중아연도 강판구조로서 도어가 형성될 위치에 개구를 구비하는 케이싱； 상기 케이싱의 개구에 설치되며, 힌지 연결된 일단이 회전하면서 상기 케이싱의 내측으로 개방되고, 상기 케이싱에 구비된 돌출부와 대응되는 단턱을 구비하여 상기 케이싱과 평면을 이루도록 상기 돌출부와 단턱이 맞물려 폐쇄되는 도어； 오염된 공기에 소독약품 또는 물을 분사하고, 필터에 각종 먼지, 분진 및 1차 오염균을 걸러내는 살수모듈； 플러그 팬을 구비하며 상기 살수모듈을 통과하여 공급받은 공기의 일
