The present invention relates to a pharmaceutical spraying apparatus, and more particularly, to a pharmaceutical spraying apparatus that sprays the medicament as a mist on the upper side of the crop to effectively spray all parts of the crop.The present invention is a drug spraying device installed in the house to protect the crops from various diseases by spraying the drug stored in the medicine container (30), the injection nozzle therein to spray the medicine stored in the medicine container (30) 15, the hollow housing 10 is installed on the ceiling of the house； A main body 20 connected to one opening of the housing 10 by a blowing guide tube 22 and having a blowing fan 25 installed therein； An air compressor (35) installed in the main body (20) and connected to the injection nozzle (15) to spray the medicine supplied from the medicine container (30)； A control unit 40 provided in the main body 20 to control operations of the blowing fan 25 and the air compressor 35； It is connected to the other opening of the housing 10 and sprayed through the injection nozzle 15, the crops scattered by the wind blown from the blowing fan 25 through a plurality of spray holes 52 formed on the surface of the crop Drug spraying pipe 50 to spray on； And a detection sensor 55 installed in the housing 10 to detect the presence or absence of the spray of the medicine sprayed through the injection nozzle 15 and to transmit it to the control unit 40.Housing, Injection Nozzle, Blowing Guide, Blowing Fan, Air Compressor, Chemical Spray Pipe본 고안은 약제 분무장치에 관한 것으로, 더욱 상세하게는 약제를 작물의 상측에서 안개와 같이 분무시켜 작물의 모든 부위에 효과적으로 살포되도록 한 약제 분무장치에 관한 것이다.본 고안은 약제통(30)에 보관된 약제를 분무하여 각종 병충해로부터 작물을 보호하도록 하우스에 설치되는 약제 분무장치에 있어서, 상기 약제통(30)에 보관된 약제를 분무시키도록 내부에 분사노즐(15)이 구비되고, 하우스의 천장에 설치되는 중공형의 하우징(10)； 상기 하우징(10)의 일측 개구부에 송풍안내관(22)으로 연결되고, 내부에 송풍팬(25)이 설치된 본체(20)； 상기 본체(20)에 설치되어 상기 약제통(30)으로부터 공급된 약제를 분무시키도록 상기 분사노즐(15)에 연결되는 에어콤프레샤(35)； 상기 본체(20)에 구비되어 상기 송풍팬(25)과 에어콤프레샤(35)의 동작을 제어하는 제어부(40)； 상기 하우징(10)의 타측
