PURPOSE: An anion air purifier is provided to maximize an amount of anion generation and to facilitate indoor air-circulation by use of an automatic transmission fan and to improve a quality of indoor air by use of a zeocarbon filter, and to possibly construct a home network by including a microprocessor and a communication port. CONSTITUTION: The anion air purifier includes a dust sensor(7), a smell sensor(8), an infrared ray receiving portion(9), and a pure anion generating device(10) at a lower portion of a switch input section(1). A first discharge plate and a first dust collecting plate are fixed to a guide contact point to form a first anion discharge section. A second discharge plate having a pin is fixed inside a back case(30). A second dust collecting plate and a third discharge plate are provided at an inner body of the second discharge plate to form a second anion generating section. At the upper portion of the second anion generating section, a zeocarbon layer is formed.
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