Hammer crusher for crushing caked sodium silicate sand

The utility model relates to the technical field of crushers, in particular to a hammer crusher for crushing caked sodium silicate-bonded sand, which comprises a crusher body, a guide plate and a fineroller, wherein a feeding hole is formed in the top of the crusher body, a discharging hole is formed in the bottom of the crusher body, a fine roller group is correspondingly arranged on the lower roller surface of a crushing roller of the crusher body, and the minimum distance between the roller surface of the crushing roller and the fine roller group is 25-50mm; the fine roller group comprisesa plurality of fine rollers which are arranged at intervals; the axis of the fine roller is correspondingly parallel to the axis of the crushing roller; ratio of roller diameter of the thin roller toroller diameter of the crushing roller is 1: 1. 10-15, the two ends of each fine roller movably penetrate through a machine shell extending out of the crusher body in a sealed mode, gear teeth are arranged at the ends of the f