A wind direction dust collector is provided to face wind to the front side of a vane coupled in the rotator although the wind blows in any direction by forming the wind direction dust collector at the outside of the rotator. A wind direction dust collector comprises two coverings(20), a plurality of supports(30), two circular housings(40,41), and a plurality of vanes(50). Two coverings are coupled to the upper and lower ends of a vertical shaft(10) without a bearing. A plurality of supports are coupled to the covering in a radial shape. The two circular housings are coupled to the upper and lower ends of a plurality of supports. A plurality of vanes are coupled inside a circular housing of the upper/lower ends in the radial shape. The wind direction dust collector is coupled on the outside of the rotator in an aerogenerator of a vertical shaft shape.
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