Pretreatment device for light waste steel

The utility model relates to the technical field of waste steel recovery, in particular to a light waste steel pretreatment device which comprises a stable base, a crushing barrel is fixedly installed on the top of the stable base, an electric telescopic rod is fixedly installed on the inner top face of the crushing barrel, and a crushing roller set is rotatably installed on the inner surface of the crushing barrel. A plurality of layers of crushing blades are rotationally installed on the inner bottom face of the crushing barrel, a guide pipe is fixedly installed on the outer bottom face of the crushing barrel, a conveying belt is installed on the inner surface of the stable base, and a guide plate is fixedly installed on the inner surface of the stable base. According to the pretreatment device for the light waste steel, the light waste steel which is light in self weight and cannot automatically fall into the space between the crushing roller sets is pressed downwards by feeding the waste steel through the