The utility model relates to a life domestic appliance field specifically is the clarification plant field, solar vehicle -mounted air purifier especially, including the lower cover, lower cover lock installation upper cover, installation motor and wind channel shell in the lower cover, the motor is located the wind channel shell, installation champignon box, anion board and lithium cell in the lower cover, champignon box and anion board are located the wind channel shell, filter core and air -out curb plate are installed respectively in proper order to the lower cover both sides, the filter core is located the air outlet department of wind channel shell both sides, the circuit board is openly installed to the lower cover, set up button and display screen on the circuit board. The utility model relates to a rationally, compact structure, it is small, place and do not account for unnecessary space in the car. Scientific design air outlet air flue, the noise reduction reduces to pass in and out the wind resistance, improves purification efficiency, the noise reduction. The clarifier is whole to adopt modularization, plug -in components formula structure, and simple to operate is swift.