The utility model discloses a blowing and sucking type purification air curtain cover suitable for a cremation machine ash picking table top, relates to the field of funeral parlour cremation, and aims to solve the problem that an existing funeral parlour cremation room is serious in pollution. The product includes a housing, the shell is fixed on the horizontal connecting bracket; the horizontalconnecting support is installed between the two electric lifting columns, a high-voltage power source, a circulating fan, an exhaust fan and a filter are installed in the shell, an exhaust outlet is formed in the exhaust fan, the filter is installed on the periphery of the circulating fan, a purification air outlet is formed in the filter, and an air curtain air outlet is further formed in the lower end of the shell. A local ventilation and purification mode is adopted, so that the exhaust air volume in a cremation workshop can be properly reduced, and the energy consumption of a fan is reduced; according to the product, pollutant diffusion can be controlled, and direct intake of workers during close-range operation is reduced; the product can reduce the concentration of pollutants in a train workshop and improve the working environment of funeral staff.