The present invention relates to a water distribution facility, and more particularly, to a water distribution facility provided with an air conditioning unit for blocking harmful air flowing into the water distribution facility. The present invention is to solve the above problems, and an object of the present invention is to block the inflow of harmful substances from outside air flowing into the water distribution facility. The present invention has an effect that can block the inflow of harmful substances in the external air flowing into the interior space of the water distribution facility by the air conditioning unit to filter the outside air flowing into the interior space of the water distribution facility. In addition, the present invention has the effect of efficiently removing the harmful substances by stepwise filtering of the external air containing the harmful substances in accordance with the particle size of the harmful substances. In addition, the present invention has an effect of omitting unnecessary filtering through the control of only a module capable of removing the harmful substances by recognizing the harmful substances introduced therein, and effectively removing the harmful substances. In addition, the present invention has the effect of discharging harmless air from which the fine dust has been removed to the outside by adsorbing fine dust to the water sprayed by the air washer module. In addition, according to the present invention, water sprayed by the air washer module washes the dust collecting filter, thereby minimizing the additional cost due to replacement of the dust collecting filter, and thus has an economic effect. In addition, the present invention has the effect of selectively configuring the air conditioning unit according to the installation environment of the water distribution facility by attaching and detaching each module for filtering harmful substances.본 발명은 수배전설비에 관한 것으로 보다 상세하게는, 수배전설비 내부로 유입되는 유해공기를 차단하는 공조유닛이 구비된
