The invention belongs to the technical field of air sterilization and purification, in particular to a purifier provided with a wind wheel 
electrode discharging device. The purifier comprises the wind wheel 
electrode discharging device, a high-
voltage power supply, a wind inlet, a wind outlet and a casing. A cylindrical 
metal wind wheel of the wind wheel 
electrode discharging device is a discharging ground electrode; high-
voltage electrodes are coaxial 
metal net cylinders sleeved at the inner and outer sides of a wind wheel electrode; a 
fiber wrapping layer is arranged outside a blade of the wind wheel electrode; and TiO2 nanometer particles are plated on the surface of the 
fiber wrapping layer. The purifier is characterized in that the rotating 
metal wind wheel, serving as the discharging electrode, effectively stops the generation of microdischarge, so that a uniform high-density 
plasma can be obtained, and the service life of the electrode is prolonged; and fibers 
coating on the blade are moved with high speed along with the blade, so that the absorption of pollutants is facilitated, and the 
airflow resistance is not increased. Therefore, the purifier has the advantages of high 
air purification efficiency, 
energy conservation and 
low noise, can be widely applied to the 
air quality management in houses, public places and automobiles and the 
industrial waste gas treatment, and is particularly suitable for an internal unit of an air conditioner.