Material scraping device for asphalt paver

The invention relates to a material scraping device for an asphalt paver. The material scraping device for the asphalt paver is mounted on the asphalt paver during using; the paver comprises an auger,a material groove front baffle and an ironing plate; the auger is positioned between the material groove front baffle and the ironing plate; the material scraping device for the asphalt paver comprises a driving mechanism and a material scraping mechanism; the material scraping comprises a scraping knife holder and multiple scraping knives fixed on the scraping knife holder; the length directionof the scraping knife holder is parallel to the horizontal plane; the driving mechanism is used for pushing the scraping knife holder to do linear reciprocating motion in the horizontal direction; andthe moving direction of the driving mechanism is as same as the length direction of the scraping knife holder. The scraping knife holder mounted with the scraping knives is driven by the driving mechanism to do linear reciproc