The invention discloses a closed-cycle high-temperature airflow reaction device. The device comprises a fan, a waste heat recovery device, a pressure balancing device, a secondary heater, a feeder, an accelerator, a high-temperature reacting furnace, a three-level heater, a cooling system, a dedusting system and a discharging device. Continuous reaction and continuous sintering production can be realized by virtue of a vertical box reaction cavity, the investment cost of equipment is reduced greatly, the closed-cycle high-temperature airflow reaction device has the characteristics of compact structure, convenience in operation and maintenance, good controllability, energy conservation and emission reduction, remarkable reaction effect, no material retention or piling, short reaction time, high rate of finished products, exquisite design and high practicability and can fully utilize heat of exhaust, and the investment to mated infrastructure is less.