The invention relates to a spark-proof movable cover plate for a well with explosion dangers. The problems that an existing fixed cover plate of a waste reservoir is inconvenient to desilt, and a movable cover plate is prone to generating sparks after crashing with a concrete component to result in explosion are mainly solved. The spark-proof movable cover plate for the well with the explosion dangers is characterized in that, a face plate (8) is fixed to the upper portion of a frame, a bottom plate (9) is fixed to the bottom of the frame, and the frame is filled with a heat preservation material (7); neoprene plates (6) are pasted on the edges of the periphery, the top and the bottom of the frame correspondingly; and a handle (3) is connected to transverse steel skeletons (2) at the left end and the right end of the frame. The movable cover plate is convenient to assemble and disassemble, no spark is generated when the movable cover plate is crashed, and the requirement for explosion venting is met.