BBU vertically-installed cabinet

The utility model discloses a BBU vertically installed cabinet, comprising a cabinet body with an accommodating space inside, a BBU sub-frame 1 and a heat radiation pipeline assembly are arranged in the cabinet body, the heat radiation pipeline assembly comprises a hot air pipeline 2 and an air exhaust channel 3, the air exhaust channel is arranged at the top of the cabinet body, the upper end of the air exhaust channel is provided with an air outlet 4, and the air exhaust channel is provided with an air outlet switch valve 5. The lower part of the cabinet body is provided with a three-way structure 8, one interface is connected with the lower end of the hot air pipeline, one interface is communicated with air in the cabinet body, an air inlet switch valve 9 is arranged, and one interface is communicated with external air; and a dustproof filter screen 10 is arranged. In the working process, the normal working mode and the ash removal mode can be switched to be completed through different combinations of open