Valve bank for coal mining machine

The utility model relates to a valve bank for a coal mining machine. An integrated valve bank, a manual and hydraulic change-over valve I, a transition plate component, a manual and hydraulic change-over valve II and a brake control valve are severally independent and are sequentially bolted together through bolts and sealed through an O-shaped ring of the end face; the transition plate component is arranged between the manual/hydraulic change-over valve I and the manual and hydraulic change-over valve II to enable a high pressure oil opening O of the manual and hydraulic change-over valve I to be communicated with a high pressure oil opening P of the manual and hydraulic change-over valve II, and meanwhile enable a low pressure oil outlet of the manual and hydraulic change-over valve I to be communicated with a low pressure oil inlet of the manual and hydraulic change-over valve II; the structure of the manual and hydraulic change-over valve II is identical to the structure of the manual and hydraulic change-over valve I, and the manual and hydraulic change-over valve II and the manual and hydraulic change-over valve I are interchangeable. According to the valve bank for the coal mining machine, the high pressure oil passage is separated form the low pressure oil passage, and the maximum working pressure and the calorific value of a system can be reduced when the coal mining machine is turned up; the valve bank uses a combination valve body structure, the processing is convenient, the replacement and the maintenance are convenient when the valve bank is damaged, and the cost is saved; the valve bank is provided with the transition plate component to enable the two manual change-over valves to be identical, the interchangeability is increased, and the cost is lowered.