The invention discloses a swinging type double-roller crusher which improves the rack structure, the overload protection device and the discharge hole clearance adjusting device of the prior double-roller crusher; the rack structure comprises a translating frame, a swing frame and a main rack. The swinging type double-roller crusher is characterized in that the swing frame is added; the swing frame has the function of a lever, which reduces the labor intensity in the process of finely adjusting the discharge hole clearance; two discharge hole clearance adjusting devices are arranged, one of which is used for rough adjustment and the other of which is used for fine adjustment; the overload protection device is additionally provided with a precompressing structure on the spring, the precompressing structure comprises a positioning column, a jacking column and a spring seat and enables the spring to be in the compressed state. Accordingly, swinging type double-roller crusher overcomes the technical defaults that the working length of the spring and the spring force are changed after the discharge hole clearance is adjusted, so that adjustment is required again.