Intrinsically-safe circuit used for electronic detonator and time delay device used for electronic detonator

The invention provides an intrinsically-safe circuit used for an electronic detonator and a time delay device used for the electronic detonator. By means of the intrinsically-safe circuit used for the electronic detonator and the time delay device used for the electronic detonator, potential production safety hazards, which possibly exist in coal mine operation, of the electronic detonator can be eliminated, so that the safety coefficient is high. The intrinsically-safe circuit comprises a current limiting module, a transient suppression module, a rectifier module, a blocking module and a receiving and transmitting auxiliary module which are electrically connected, wherein input ends of the current limiting module are connected with detonator leg wires, and the current limiting module is used for limiting the magnitude of current; an input end of the transient suppression module is connected with an output end of the current limiting module, and the transient suppression module is used for preventing surge pu