Circulating screening device for oil cakes

The utility model discloses an oil cake circulation screening device which comprises a screening main body, a feeding assembly is installed at the first end of the screening main body, a discharging assembly is installed at the second end of the screening main body, a discharging channel is formed in the surface of the lower end of the screening main body, and the screening main body comprises a screening cover body. An obliquely-arranged screening assembly is rotationally connected into the screening cover body, an electric control device is arranged in the screening body and used for controlling the screening assembly to rotate, a mounting gap exists between the screening cover body and the screening assembly, and an air blowing device is arranged in the mounting gap. The air blowing device comprises a first air blowing assembly and a second air blowing assembly, the first air blowing assembly is located at the preset position below the screening assembly, and a preset distance is formed between the second