The invention discloses improved dust catcher equipment. The improved dust catcher equipment comprises an electrical connector and a power transmission rack, wherein a touch electric contact block isarranged on a right end surface of the electrical connector, two locking grooves are oppositely formed in an upper end surface and a lower end surface of the electrical connector, vertical posts are arranged at the bottom of the power transmission rack, rollers are rotatably arranged at the bottoms of the vertical posts, a pin groove is formed in a left end surface of the power transmission rack and extends rightwards, two push grooves are formed in an upper end and a lower end of a right part of the pin groove and communicate with the pin groove, and a push plate is arranged in the pin groove, is expanded towards the two push grooves and can move leftwards and rightwards in the two push grooves. The improved dust catcher equipment is simple in structure and good in power supply stability,an electric shock accident during plugging out the electrical connector is prevented, and the life safety of people is guaranteed; and moreover, the whole device is reliable to run, is reasonable instructural design and is suitable for promotion and application, and the electrical connector is simple and convenient to lock and unlock.