PURPOSE: To provide an aggregate production apparatus which not only improves productivity and efficiency, but also produces high quality aggregate such as natural aggregate to be suitably used as a material for concrete by removing stone and sand, dust, foreign materials and miscellaneous waste from crushed gravel or waste stone powder. CONSTITUTION: In an aggregate production apparatus comprising a crusher, a storage tank, first sorting machine, first specific gravity separator, second specific gravity separator, first cyclone type dust collector, second dust collector, second sorting machine and a water washing sorting machine (90), the apparatus is characterized in that the water washing sorting machine comprises a sorting tank (91) in which a certain amount of water is contained, a lower part of which is formed in a conical shape, on an inner part of which inclined plates are formed, and which is installed on an upper part of a frame; a conical sorting drum (92) which is installed inside the sorting tank
