The invention provides a sealed pressure feed type horizontal directional drilling engineering geological survey continuous coring device. The sealed pressure feed type horizontal directional drillingengineering geological survey continuous coring device comprises an outer pipe assembly and an inner pipe assembly used in cooperation with the outer pipe assembly. The outer pipe assembly comprisesa single-wall drill rod and a double-wall drill rod, the single-wall drill rod is located on the upper part of the double-wall drill rod, and an elastic clamping blocking head, an elastic clamping chamber, a hanging seat ring, a probe chamber positioning inner clamp, a probe chamber positioning outer clamp, a centralizing ring, a clamping spring seat and a drill bit are sequentially arranged on the inner wall of the double-wall drill rod from top to bottom. The inner pipe assembly is located in the drill rod and comprises a spear head, a first sealing part, an elastic clamp positioning mechanism, a recycling pipe, a second sealing part, an in-place signal reporting mechanism, a rock core blockage alarming mechanism, a single-action mechanism, a guiding mechanism, a buffering mechanism, anadjusting mechanism, a rock core pipe and a rock core clamping and taking mechanism which are sequentially arranged from top to bottom. According to the sealed pressure feed type horizontal directional drilling engineering geological survey continuous coring device, guiding and coring are combined, the direction can be accurately controlled, and efficient coring can further be achieved.