The present invention relates to a centrifuge having a moisture discharge structure and a purifier system using the same, and the purpose of the present invention is to provide a centrifuge having a moisture discharge structure configured such that moisture, which is separated from oil sprayed from a nozzle of a rotor, is discharged through a separate moisture discharge opening, thereby being able to remove moisture inside the oil without using a separate oil/moisture separator, and a purifier system comprising the centrifuge. To this end, the present invention provides a centrifuge having a moisture discharge structure and a purifier system using the same, the centrifuge comprising: a casing having an oil inflow opening and an oil discharge opening formed therein; a shaft installed at the center of the casing so as to guide oil, which flows in through the oil inflow opening, to the center of the casing; a stand tube installed and structured to be able to rotate about the shaft; a rotor installed inside the casing so as to form a space, which receives and filters oil ejected from the stand tube, while rotating together with the stand tube, the rotor having a nozzle formed thereon so as to spray the filtered oil into the casing; a moisture discharge opening formed in the casing such that moisture, which is separated from the oil sprayed through the nozzle, is discharged to the outside of the casing together with air; and an air inflow opening formed in the casing such that air, which corresponds to the amount of air discharged through the moisture discharge opening, flows into the casing.