PURPOSE: To provide a movable crusher where earth and sand being impurity are removed from rocks in a quarry before crushing to produce an aggregate of a high quality which is discharged to a dump truck of any height.

CONSTITUTION: On a freely travelling crawler 2 is mounted a transporting device 40 equipped with hopper 10, a vibrating screen with a grizzly 20, a crusher 40 and a hydraulic cylinder 42 for tilting. And a vibrating screen 50 for removing earth and sand from the minus sieve of the vibrating feeder 20 with a grizzly and an auxiliary transporting device for transporting the earth and sand are also provided.