The invention discloses a tea leaf drying device. The tea leaf drying device comprises a base and a drying box. The drying box is arranged above the base, supporting legs are arranged between the drying box and the base, an electromagnetic heating coil is embedded in the wall of the drying box, a feeding hopper is arranged at the upper end of the drying box, a discharging pipe is arranged at the lower end, located in the drying box, of the feeding hopper, an air jet pipe is arranged in the drying box, an air jet port is formed in the upper side of the wall of the air jet pipe, an exhaust port is formed in the upper left end of the drying box, the air outlet end of the exhaust port is connected with a circulating fan, an air outlet of the circulating fan is connected with the air inlet end of the air jet pipe through an air guide pipe, the air guide pipe penetrates through a filtering box and a dehumidifying box in sequence from top to bottom, a discharging door is further arranged at the bottom of the drying box, and a conveying belt is further arranged on a base at the lower end of the drying box. The tea leaf drying device is simple and reasonable in structure, high in heating efficiency and good in drying effect; heat loss is avoided while dryness of air in the drying box is maintained, and thus the effect of saving energy is achieved.