Ventilation type air cleaner and ventilation system having the same

A ventilation type air cleaner comprising:

• a housing having a central rotating shaft therein and including a purification part, a washing part, and a sterilization part in a circumferential direction with respect to the central rotating shaft;
• a rotating unit installed to be rotatable about the central rotating shaft as a rotation center in the housing;
• a filter assembly detachably coupled to the rotating unit and configured to sequentially pass through the purification part, the washing part, and the sterilization part according to rotation of the rotating unit;
• an intake duct connected to the housing and configured to guide a flow of air introduced to the purification part;
• and
• an exhaust duct connected to the housing and configured to guide a flow of air discharged from the purification part,
• wherein the intake duct and the exhaust duct are connected between the outside and a total heat exchanger so that external air flows into the total heat exchanger after passing through the purification part.