High-heat-dissipation automobile charger

The utility model provides a high heat dissipation automobile charger, which comprises an automobile charger assembly and a dustproof heat dissipation mechanism, and is characterized in that the automobile charger assembly comprises a charger shell, an operation panel, a transformer and a circuit board; the dustproof heat dissipation mechanism comprises an air guide pipe, a fan, a heat exchange block, a cold guide plate, a semiconductor chilling plate and a temperature sensor; air in the charger shell is guided into the air guide pipe through the fan, then heat of water in the heat exchange block is absorbed by the semiconductor chilling plate through the cold guide plate, so that the heat exchange block is cooled, then the cooled heat exchange block is used for absorbing the heat of the air in the air guide pipe, and the air in the air guide pipe is cooled. And then the air after heat absorption and cooling is discharged to the other side in the charger shell through the air guide pipe, so that heat dissipat