A heat dissipating type tea drying device capable of achieving automatic control comprises a drying air flow blowing device (5) structurally symmetric in a left-and-right mode. The drying air flow blowing device (5) comprises an annular body part (53) and an annular shell part (54), wherein the annular body part (53) is provided with a cylindrical air blowing drying channel (50) extending axially, and the annular shell part (54) is supported on the annular body part (53) through a radial support (58) and contains the annular body part (53). The annular body part (53) is internally provided with a plurality of radial air blowing air channels (51) evenly distributed in the axial direction so as to input air flow in the radial direction of the cylindrical air blowing drying channel (50).