Hot air guide device of grain dryer

The utility model relates to the technical field of grain drying equipment, in particular to a grain dryer hot air flow guide device which comprises a base, a drying box is arranged at the top of the base, a feeding hopper is arranged at the top of the drying box, a drying bin is formed in the drying box, a spiral conveying roller is arranged in the drying bin, and the spiral conveying roller is arranged on the top of the base. A motor is arranged at one end of the base, an output shaft is arranged at the end, close to the drying box, of the motor, a mounting seat is arranged at the bottom of the motor, the motor is fixedly connected to the top of the base through the mounting seat, a mounting table is arranged at the top of the drying box, and a heating box is arranged at the top of the mounting table. According to the hot air flow guide device of the grain dryer, the air blower, the heating rod and the exhaust fan are used in cooperation, so that air in the drying bin circulates in an accelerated mode, the