To provide waste classifying facilities and a classifying method therefor, capable of affording the efficient transportation of waste to the facilities and the avoidance of adverse influence on surroundings.

Waste classifying facilities to classify collected waste into combustible and noncombustible are equipped with a waste pit 12 to which waste W is fed and in which it is accumulated, a waste crusher 14 which crushes the waste W accumulated in the waste pit 12, a percussion crusher 20 which dries, strikes and stirs the waste W crushed by the waste crusher 14 in a crushing chamber 20a to classify it into noncombustible and combustible waste, a cyclone 32 and an induced blower 33 which suck and discharge the combustible waste Wa from the upper side of a crushing chamber 20a, and a selection means 19 which sorts the noncombustible discharged from the lower side of the crushing chamber 20a into various kinds of resources.