Switch for anti-explosion cap lamp head

The utility mode provides a switch for an anti-explosion cap lamp head, wherein a bolt is pre-embedded in a cap lamp casing, a knob is sleeved on the bolt, a powerful magnet is arranged on a side of the knob, a reed pipe is connected in series in the line inside the cap lamp casing, and the reed pipe and the powerful magnet influence each other. In the utility model, the knob is rotated and then the on-off of the circuit can be controlled; and the knob and the interior of the casing are isolated from each other, dripping water can be prevented from entering into the lamp head through a clearance, and the production and the safety of workers are ensured.