The invention discloses a small-sized multifunctional air-and-screen cleaner. The small-sized multifunctional air-and-screen cleaner is characterized in that the cleaner is composed of a machine frame, a feeding hopper, a wind-air hopper, a wind-speed adjusting plate, a wind amount distribution valve, a vibrating screen body, a screen body angle adjusting rod, a screen body amplitude adjusting rod, a jolting track assembly, a hasp lock, an eccentric cam mechanism, a belt drive system, a motor, an induced fan, a wind pipe, a supporting base, a distribution box and the like; the feeding hopper and the wind-air hopper are placed on the upper portion of the rear end of the machine frame, and the wind-air hopper is arranged under the feeding hopper; the motor and the induced fan are fixed to the bottom of the machine frame; the vibrating screen body is obliquely arranged right in the center of the machine frame; the front end of the vibrating screen body is placed on the jolting track assembly structure, the rear end of the vibrating screen body is connected with the machine frame through the screen body angle adjusting rod, and the vibrating screen body is low in the front and high inthe back; and the eccentric cam mechanism is placed on the lower rear portion of the machine frame through a mounted bearing. According to the small-sized multifunctional air-and-screen cleaner, winnowing and screening are integrated, the structure is compact, operation is stable, grains can be well cleaned after operation, and the small-sized multifunctional air-and-screen cleaner is suitable forbeing applied and popularized in research and development institutions for plot experiments.