Double-power-supply switching device

The utility model relates to a double-power-supply switching device. The device includes an incoming line column of a vacuum circuit breaker, a first outgoing line column, a second outgoing line column, a first opening closing switch, and a second opening closing switch; the vacuum circuit breaker is arranged on a cross arm; two ends of the cross arm are respectively provided with a first metering box and a second metering box; the cross arm is mounted on a first vertical rod and on a second vertical rod; the first vertical rod is provided with a first electric meter box; the second vertical rod is provided with a second electric meter box; a first metering box incoming line column, the first opening closing switch, the first outgoing line column and the first electric meter box are connected in turn; a second metering box incoming line column, the second opening closing switch, the second outgoing line column and the second electric meter box are connected in turn; and the first opening closing switch is con