Air purification device for environmental protection engineering

The utility model relates to the field of purification devices, in particular to an air purification device for environmental protection engineering, which comprises a shell, an air inlet window, an air outlet window, a control panel, rollers, a collecting hopper, a filter screen, an activated carbon module, a heat dissipation plate, an air blower, a control module, a conical hopper and a linear motor, the side bottom of the shell is connected with the air inlet window; the bottom of the shell is rotationally connected with multiple groups of rollers; the bottom inner wall of the shell is connected with a collecting hopper; the inner wall of the side surface of the shell is connected with the filter screen; the side surface of the filter screen faces the air inlet window; the filter screen inner wall is connected with the activated carbon module; the bottom of the activated carbon module is connected with the conical hopper. Through the combination of the air blower and the filter screen, the working efficien