Drinking cup capable of dissipating heat rapidly

A drinking cup capable of dissipating heat rapidly comprises an outer cup body (1) and a cavity (2), and is characterized in that an annular cooling cavity (3) is formed between the outer cup body (1) and the cavity (2), a plurality of convection holes (4) are uniformly formed in a side wall of the cavity (2), a heat dissipation opening switch (5) is arranged on an upper port of the annular cooling cavity (3), a blowing fan (6) is arranged at the bottom of the outer cup body (1), and a temperature controller (8) is mounted on the outer side surface of the outer cup body (1). The annular cooling cavity is formed between the outer cup body and the cavity, the blowing fan can provide large cooling air flow for the annular cooling cavity, hot water can be pushed to roll in space between the cavity and the annular cooling cavity in a convection manner, the effect of accelerating cooling is achieved, the cooling speed of the hot water is increased in a rapid air-cooling convection mode, therefore, the temperature o