The invention provides an automobile floating-charge air conditioner. The automobile floating-charge air conditioner mainly comprises an upper flap, a lower flap carriage body, an upper flap duct, a carriage heat insulation layer, a lower flap carriage body duct, an upper flap heat insulator, a heat tube, a fan, a heat tube cooling fin and a supporting sleeve; a certain angle is formed between the lower flap carriage body and the upper flap; the air flows through between the lower flap carriage body and the upper flap; and as the speed of the air between the lower flap carriage body and the upper flap is high, the throat temperature between the lower flap carriage body and the upper flap is greatly reduced to manufacture cooling capacity and the cooling capacity is conveyed into a heat tube system to be utilized. Through adoption of the mode, air kinetic energy and solar energy can be decomposed for refrigeration and heating in the running of a motor vehicle and the obtained cold and heat are recycled by a vehicle air conditioner and an air conditioning system; therefore, purposes of refrigerating and heating, charging cold energy, heat energy and electric energy in a floating manner, absorbing and utilizing outside energy and decomposing drag energy are realized.