Building aggregate winnowing machine

The utility model relates to the technical field of aggregate sorting machines, in particular to a building aggregate winnowing machine which comprises a shell, a circulating air duct and a baffle assembly are arranged in an inner cavity of the shell, a vibrating feeder is arranged outside the shell, materials fall through the vibrating feeder, the materials in the falling process are divided into two types by the circulating air duct, and the baffle assembly is arranged on the baffle assembly. The baffle assembly isolates the two kinds of materials to achieve aggregate sorting. The equipment is high in integration degree, the circulating air duct is arranged in the shell, dust and other impurities generated in the sorting process cannot overflow, the environment is protected, meanwhile, harm to the body of a worker is reduced, and in addition, in order to improve the sorting efficiency, the equipment is convenient to use. The grating assembly in the equipment can prevent light materials from being blown too