Rhombic turnout resistant to extreme climate

The invention discloses a diamond turnout resistant to extreme climate, and relates to the technical field of railway steel rails, the diamond turnout resistant to extreme climate comprises four fork cores, steel rail legs, connecting pieces and steel rail strips, the number of the fork cores is four, the fork cores are distributed in a diamond shape, and the top of each fork core is provided with a '/'-shaped fork core rail groove; the four sets of steel rail legs are correspondingly distributed on the periphery of each fork core, each set of steel rail legs comprises four steel rail legs which are correspondingly connected to notches of the fork core rail grooves, rail leg rail grooves matched with the fork core rail grooves are formed in the tops of the steel rail legs, and the steel rail legs comprise the first-class steel rail legs and the second-class steel rail legs. One end of the first-class steel rail leg is welded to an inner side notch of the fork point rail groove, and one end of the second-class